Attestation letters validate a person’s character, status, or relationship.
Whether you need to prove a familial bond for a visa application or confirm a friend’s standing for a job reference, the right words make all the difference.
A well-crafted letter of attestation lends credibility and strengthens the case.
Finding the proper phrasing can be tricky, though.
What tone should you strike?
How much detail is enough without going overboard?
No worries – we’ve got you covered.
The following sample letters of attestation provide a solid starting point.
Adapt them to fit your unique circumstance and voila! You’ll be attesting with the best of them.
Sample Letters of Attestation
Here are 20 examples of relationship attestation letters covering a range of scenarios:
Attestation of Marriage for Immigration Purposes
To Whom It May Concern,
I am writing to attest to the genuine marital relationship between John Smith and Jane Doe Smith. I have known the couple for over 10 years, both before and after their wedding in June 2015.
As a close family friend, I have witnessed firsthand the love, commitment, and mutual respect John and Jane share. They support each other through life’s ups and downs and are wholly devoted to their marriage. It is clear to anyone who knows them that this is a sincere, bona fide relationship.
I understand they are applying for a spousal visa for Jane to join John in the United States. I have no doubt their intentions are true and their marriage is entirely legitimate. If you have any other questions, please don’t hesitate to contact me at 555-123-4567 or friend@email.com.
Sincerely,
Michael Johnson
Friend of the Family
Attestation of Cohabitation
To Whom It May Concern,
I, Sarah Thompson, am writing to verify that my brother David Thompson, and his partner Maria Rodriguez have been living together for the past three years. They share an apartment at 123 Main St, Anytown USA and split household expenses and responsibilities.
Although David and Maria are not legally married, they are in a committed long-term domestic partnership. I frequently visit them in their shared home and can attest to their cohabitation and dedication to one another.
Please accept this letter as an attestation of their relationship and living arrangement. You may reach me at 555-987-6543 or sis@email.com if you require any additional information.
Best regards,
Sarah Thompson
Attestation of Shared Finances
Dear Sir/Madam,
I am writing on behalf of my good friends Mark Davis and Susan Miller to confirm their jointly held financial accounts. Mark and Susan have been a couple for 8 years and have combined their finances, living as a single economic unit.
Together they hold a joint checking and savings account at ABC Bank, as well as shared credit cards and a mortgage in both names on their primary residence. They have named each other beneficiary on investment accounts and life insurance policies.
As Mark’s college roommate and a CPA who has assisted the couple with tax preparation, I can attest to the validity and extent of their financial intertwinement. Feel free to contact me with any questions at 555-555-5555 or cpa@email.com.
Sincerely,
Robert Wilson,
CPA College Roommate and Friend
Attestation of Parental Relationship for School Enrollment
To the Springfield School District,
This letter is to verify that I, Amanda Johnson, am the biological mother and legal guardian of Sophia Johnson, DOB 8/15/2012. I am writing to attest to our parental relationship in support of enrolling Sophia in Springfield Elementary School.
Sophia has lived with me since birth and I have provided her sole financial support and parental care. Her father is not involved. Attached please find copies of Sophia’s birth certificate and my driver’s license showing our shared last name and address.
Should you need any further documentation of our relationship, I can be reached at 555-246-8642 or mom@email.com. Thank you for your assistance in Sophia’s school enrollment.
Sincerely,
Amanda Johnson
Mother of Sophia Johnson
Attestation of Sibling Relationship for Medical Decision-Making
To the Medical Team at Mercy Hospital,
I, Jonathan Rodriguez, am writing to confirm that the patient Linda Rodriguez is my biological sister. Our parents are Margaret and Harold Rodriguez of Otherville, USA. I can provide their contact information and our birth certificates for further verification upon request.
As Linda’s next of kin, I understand I may need to make medical decisions on her behalf if she is incapacitated. I can attest to our lifelong sibling relationship and shared upbringing. She does not have a spouse or children, and our parents are deceased, leaving me as her closest living relative.
Please feel free to reach out with any other questions as you treat my sister. I can be contacted anytime at 555-741-8520 or bro@email.com. Thank you for the care you are providing to Linda.
Best regards,
Jonathan Rodriguez
Brother of Linda Rodriguez
Attestation of Adoption
To Whom It May Concern,
We, Emily and Joshua Brown, are writing to attest that we became the legal parents of Liam Brown through adoption on May 10, 2018. Liam has been in our care since he was 2 days old when we brought him home from the hospital. His adoption was finalized in family court just after his first birthday.
As Liam’s adoptive parents, we have all the legal rights and responsibilities of any parent-child relationship. Copies of the adoption decree and amended birth certificate are attached. Liam is our son in every way and we are deeply committed to our permanent relationship.
Please let us know if you need any additional information about Liam’s status or our family. We are more than happy to discuss our son and the blessing of adoption. You can reach us at 555-369-2580 or parents@email.com.
Warmly,
Emily & Joshua Brown
Proud Parents of Liam Brown
Attestation of Step-Parent Relationship
To Whom It May Concern,
I, Samantha Clark, have been Aiden Jenson’s stepmother since I married his father Joseph on July 21, 2010. At the time, Aiden was 6 years old. He is now 18 and applying to colleges.
Over the last 12 years, I have enjoyed a close maternal bond with Aiden, sharing in his day-to-day upbringing and celebrating milestones like birthdays, holidays, graduations, and more. While I have not legally adopted him, I consider Aiden my son and support him in every way. His father and I maintain a stable home together and share parenting responsibilities.
I am happy to provide further details of our blended family and relationship dynamic. Please contact me with any questions at 555-147-2589 or stepmom@email.com. I appreciate your consideration of my stepson Aiden in his college pursuits.
Sincerely yours,
Samantha Clark
Stepmother to Aiden Jenson
Attestation of Foster Parent Relationship
Dear Social Services,
Our names are Adam and Benjamin Larson, and we have been 9-year-old Chloe Turner’s foster parents since she entered our home at 123 Grove St, Sometown US on January 5, 2022. Over the past 14 months, Chloe has become an integral part of our family.
We provide for Chloe’s daily care, educational needs, medical treatment, emotional support, and overall well-being. She is fully accepted by our extended families and is treated no differently than a biological child. We are deeply invested in Chloe’s long-term welfare.
As a same-sex couple serving as foster parents, we feel it is important to verify our role and commitment to Chloe as we interact with schools, doctors, therapists, and other service providers on her behalf. Please don’t hesitate to contact us for more details at 555-357-1590 or dads@email.com.
Regards,
Adam & Benjamin Larson
Dedicated Foster Parents
Attestation of Uncle-Niece Relationship
To Whom It May Concern,
My name is Jacob Hernandez and my niece is Gabriella Hernandez, the daughter of my brother Daniel. I have enclosed a copy of Gabriella’s birth certificate listing her parents. I share the same parents as Daniel, Natalia, and Javier Hernandez of Hometown, USA, and can provide documentation of our sibling relationship upon request.
Uncle is more than a title to me when it comes to Gabriella, now 22. Although I live in a different state, I have been an active part of her life since birth, visiting regularly for special events and hosting her for summer vacations. We exchange calls, texts, and video chats weekly. I love my niece dearly and she is like a daughter to my wife and me.
I understand Gabriella is applying for a position that requires a family reference. I am honored to speak to her many wonderful qualities. I can be reached at 555-468-1357 or uncle@email.com if you would like to discuss my relationship with Gabriella further.
Sincerely,
Jacob Hernandez
Proud Uncle of Gabriella
Attestation of Grandparent-Grandchild Relationship
To Whom It May Concern,
As the maternal grandmother of Jason Kim, I can attest to our close grandparent-grandchild relationship. My daughter Lisa Kim and her husband William are Jason’s parents. I was present at his birth on April 3, 2002 and have been a consistent caregiver throughout his life.
When Lisa and William’s military service took them overseas, Jason lived primarily in my home from ages 8-12. We have always shared a special bond, as I have been highly involved in his upbringing. Even now that Jason is grown, we continue to see each other multiple times per month and I support him in his adult endeavors.
It’s my pleasure to verify my grandson’s character and accomplishments to assist in his scholarship application. I’m happy to provide further details of our family structure and my influence as his grandmother. You can contact me at 555-147-8526 or grandma@email.com.
Most sincerely,
Mrs. Mina Park
Grandmother of Jason Kim
Attestation of Cousin Relationship
Dear Hiring Manager,
I have known the candidate Priya Laghari as my first cousin for her entire life. Her father Vikram is my mother Anisha’s brother. They, along with my parents and Priya’s siblings, all immigrated to the US from India in the 1980s, settling in Somewhere, the USA. Our extended family remains very close-knit.
Growing up, Priya and I were raised more like sisters than cousins. Our families celebrated every holiday and birthday together, and we even shared a room when her family stayed with us each summer. To this day, Priya is one of my nearest and dearest relatives and friends.
When Priya asked me to serve as a reference for her job application, I was thrilled. She is an exceptional person whom I recommend wholeheartedly. If you need any further details about our cousin’s relationship and history, I can be reached at 555-741-6985 or cuz@email.com.
Regards,
Simran Patel
Cousin of Priya Laghari
Attestation of Great-Grandparent Relationship
To Whom It May Concern,
It is my joy and privilege to confirm that baby Oliver Hudson, born February 17, 2023, is my biological great-grandson. His proud parents are my grandson James Hudson and his wife Sofia. I have enclosed a copy of Oliver’s birth announcement and family tree for your reference.
At 98 years old, I have been blessed to meet my first great-grandchild and spend these special early months visiting and snuggling him often. There are four generations of love between Oliver and me, and he carries on our treasured family name.
This letter is to certify our great-grandparent relationship for Oliver’s baby book records. Should you need any supplementary documentation, my son Robert Hudson is assisting me with correspondence. He can be reached at 555-369-8520 or gramps@email.com.
With gratitude,
Theodore Hudson
Delighted Great-Grandfather
Attestation of Godparent Relationship
To the St. Mary’s Parish Community,
I am writing to share how honored I am to be godmother to Elizabeth Davis, daughter of my dear friends Karen and Thomas Davis. When they asked me to sponsor Elizabeth in the sacrament of baptism, I was overjoyed to take on this spiritual mentorship role.
As a lifelong practicing Catholic myself, my faith is central to my life. I have committed to nurturing Elizabeth’s religious formation as she grows. Whether it’s seeing her receive future sacraments, helping explain elements of doctrine, or modeling Christian charity, I take my godparent responsibilities to heart.
It’s my privilege to affirm this godparent relationship and my pledge to be a positive influence for Elizabeth within the Catholic Church. I look forward to partnering with your parish as she progresses on her faith journey. Please contact me at any time at 555-147-3698 or godmom@email.com.
Peace be with you,
Valeria Rojas
Godmother of Elizabeth Davis
Attestation of Mentor-Mentee Relationship
To Whom It May Concern,
I have been honored to serve as a mentor to Ethan Young for the past four years through the Big Brothers Big Sisters program. Ethan was 13 and I was 30 when we were first matched based on our shared interests in science and the outdoors. He is now a talented 17-year-old looking ahead to college, and I could not be more proud.
My role as Ethan’s mentor has been to offer guidance, support, and friendship as he navigates his teenage years. We get together 2-4 times per month to work on homework, discuss future goals, or have fun exploring a museum or park. I’ve watched him mature into a motivated student and thoughtful young man.
Ethan is applying for a prestigious scholarship and I’m pleased to verify our mentor-mentee relationship to help him earn this well-deserved honor. If you would like to discuss his impressive development further, don’t hesitate to get in touch at 555-753-8642 or mentor@email.com.
Warmly,
Dr. Jamal Abadi
Proud Mentor to an Exceptional Student
Attestation of In Loco Parentis Guardianship
To Whom It May Concern,
We, Olivia and Luca Russo have been serving as guardians for Mia Davis, age 16, since the tragic loss of her parents Peter and Vanessa Davis on June 5, 2021. The Davis family were our neighbors and dearest friends for 10 years before the accident that claimed their lives.
In keeping with Peter and Vanessa’s wishes that we assume custody of Mia if anything ever happened to them, we welcomed Mia into our home as our own. We have supported Mia through her grief and taken on all parental duties including her health, education, financial and emotional care.
While we have not formally adopted Mia, we attest to acting in loco parentis to meet her needs and provide a stable home until she reaches adulthood. Our commitment to Mia is permanent and unconditional. Please feel free to contact us for any further information at 555-426-1793 or guardians@email.com.
Sincerely,
Olivia & Luca Russo
Legal Guardians & Parental Figures to Mia Davis
Attestation of Coach-Athlete Relationship
Dear College Admissions Committee,
My name is Coach Marcus Thompson and I am writing to attest to my coach-athlete relationship with Samuel Kim for the past 6 years. Samuel joined our youth swim team at age 11 and I have served as his head coach throughout middle and high school.
During this pivotal developmental time, Samuel has grown from an eager beginner into one of the most disciplined and accomplished swimmers I have ever coached. He has continually impressed me with his resilience, sportsmanship, and ability to inspire his teammates. Our coach-athlete bond has been instrumental to his athletic and personal growth.
It has been my great pleasure to be a part of Samuel’s journey and watch him excel both in the pool and the classroom. I do not doubt that he will continue to make a positive splash in college and beyond. Please don’t hesitate to contact me to discuss Samuel’s exceptional qualifications further at 555-369-5214 or coach@email.com.
Sincerely,
Marcus Thompson
Attestation of Foster Sibling Relationship
To Whom It May Concern,
I, Kayla Johnson, am writing to confirm my foster sibling relationship with Jaden Smith. My parents, Eric and Linda Johnson have been Jaden’s foster parents since he was placed in our home by Child Protective Services on August 10, 2019. I was 13 and Jaden was 7 at that time.
Over the past four years, Jaden has become a true brother to me in every sense of the word. We have shared a home, celebrations, challenges, and many cherished memories as a family. Although we may not share blood, the sibling bond I have with Jaden is as real and meaningful as the one I have with my biological sister.
While Jaden’s future with our family is not yet certain, I want to affirm my lasting commitment to our relationship. He will always be my little brother, no matter what. If you need any other details about our unique family circumstances, please contact me at 555-147-7412 or sis@email.com.
Warmly,
Kayla Johnson
Loving Foster Sister
Attestation of “Big Sister” Relationship
Dear Volunteer Coordinator,
For the past three years, I have had the pleasure of serving as a “Big Sister” mentor to Ava Rodriguez through the Big Brothers Big Sisters program. Ava was 8 and I was 24 when we first met, both excited and a little nervous about this new “sibling” relationship.
Our connection quickly grew into a trusting, supportive friendship. Although we are not biologically related, Ava has become like a sister to me. We get together regularly to roller skate, do arts and crafts, play games, and talk about the joys and frustrations of growing up. I treasure my role in boosting her self-esteem and expanding her horizons.
As Ava approaches middle school, I am happy to vouch for the ongoing value of our Big Sister match and request that we stay paired in the program. She is a wonderful “little” and I’m honored to be her “big.” Please reach out for more info at 555-852-7539 or bigsister@email.com.
Cheers,
Chloe Davis
Dedicated “Big Sister” to Ava
Attestation of Caregiver Relationship
To Whom It May Concern,
My name is Gabriela Flores and I have been Marta Torres’ live-in caregiver since she was discharged from Sterling Rehabilitation Center on November 15, 2020, following a stroke. I am writing to verify our patient-caregiver relationship and Marta’s required level of care.
For the past two and a half years, I have resided in Marta’s home to assist with all activities of daily living, transportation to medical appointments, medication management, and household tasks. We have developed a close bond and she depends on me completely for her health and safety needs.
Due to the severity of Marta’s impairments, she will continue to need full-time skilled caregiving services for the foreseeable future. I am committed to providing her with the highest quality care. Please feel free to contact me or Marta’s daughter Ana Torres for any other details at 555-713-5555 or caregiver@email.com.
Best regards,
Gabriela Flores
Devoted Caregiver to Marta Torres
Attestation of Chosen Family Relationship
Dear Kristy and Jessica,
It is my great pleasure to write this letter attesting to the depth of your incredible relationship. When you asked me to officiate your wedding, I could not imagine a more perfect match. And now, ten years later, your partnership continues to be an inspiration.
What strikes me most is that you have created a chosen family together. Neither of you may have been born into ideal circumstances, but you’ve built a beautifully supportive, loving foundation as spouses. Your home is a haven of warmth and acceptance, not only for your amazing children but for the many lucky friends you’ve gathered too.
Thank you for being a shining example of how we can define our own families, bound by affection and shared joy. I am honored to affirm your enduring devotion as you renew your vows. Please let me know if there is anything more I can do to celebrate your love and chosen kin. I’m here anytime at 555-147-6893 or friend@email.com.
Cheering you on always,
Alex Park
Friend and Chosen Family Member
Conclusion: Confirmation of Genuine Relationships
Attesting to a relationship in writing can serve many purposes. These letters are instrumental in demonstrating circumstances like:
- Proving a familial bond for legal or immigration reasons
- Verifying a close connection for employment or education opportunities
- Confirming a caregiver role for insurance or benefits
- Validating the authentic nature of partnerships, blended families, or chosen kin
- Advocating for a loved one’s character based on direct observation over time
Whatever the reason, a carefully crafted letter of attestation provides valuable third-party credibility.
By detailing the history, commitment level, and legitimacy of a relationship in specific terms, these testimonials help satisfy documentation requirements and lend weight to someone’s case.
At the same time, attestation letters also offer a meaningful reflection on the profound impact our relationships have.
Whether it’s a sincere tribute to an inspirational mentor, a celebration of found family, or a grandfather’s pride in his newest descendant, these letters are stories of connection.
They capture the many forms that love and kinship can take.
So if you find yourself in need of a relationship attestation, let these samples be your guide.
Adapt the language to honestly reflect your particular bond and speak from the heart.
A well-written testimonial is a gift to the recipient, a show of your loyalty and support.
It proves that sometimes the most important ties are not just blood or law, but the ones we build and nurture over time.