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About me

Sean O'Bryan grew up in Lapeer County, Michigan. He was the 7th of 8 children, and 1 of 7 boys. His father, William O'Bryan, was a World War II veteran, and worked for the Fisher Body Division of General Motors. He died in 2004, at the age of 81. His mother, Mary Jean, was a registered nurse during the war, and homemaker, wife and mother. She died from Alzheimer's disease in 2009.


Sean graduated from Almont High School in 1981, where he was active in Future Farmers of America and worked for the local newspaper, the Tri City Times.


Sean completed his undergraduate studies at Central Michigan University, where he was elected student body president in 1985, and was an active member of the Beta Theta Pi fraternity.


Sean attended law school at Texas Tech University, where he received his Doctorate in Jurisprudence in 1991, was a member of the Texas Tech Law Review and the Phi Delta Phi legal fraternity for honors students. 


He has also studied at several other colleges, including Michigan State University, the University of Detroit Law School, the University of Windsor (Canada), and the University of Texas. 


Always an active student of the law, Sean O'Bryan studies several hours each week, and spends many days each year attending professional conferences, including the annual Michigan Estate Planning Institute, to gain a better understanding of complex estate planning issues, and to stay on top of cutting edge planning options. Sean has worked at the well known Dallas law firm of Fanning, Harper & Martinson, and the Texas Attorney General's office before coming back to Michigan, and beginning an estate planning law practice.


Sean has written several articles on law technology and elder law and estate planning issues that have appeared in a variety of publications.

Since beginning his practice in Michigan, Sean has personally handled over 5000 separate legal matters for more than a thousand local families. He has drafted over 3000 trust agreements, which will allow more than $900 million dollars to pass to families without probate.


In 2005, Sean was among the first attorneys in Michigan to complete a certificate for advanced training in the Probate and Estate Planning Program sponsored by the Michigan Bar Association and the Institute for Continuing Legal Education.


Sean currently serves as a trustee of the Four County Community Foundation in his original hometown, Almont, Michigan.


Sean is also an active horseman, and is a member of the Lapeer County Mounted Posse.


Sean was a past Vice Chairman of the Davison Downtown Development Authority, where he worked for the revitalization of Davison’s historic downtown.

Sean is married to Aimee Lintz O'Bryan, a paralegal.


Sean and Aimee have two children, their son Caelán Patrick O’Bryan and daughter Teagán Riley O’Bryan, who both attend the Chatfield School in Lapeer.


They reside at Celtic Ridge, a small farm between Davison and Lapeer where they raise horses, sheep, goats, chickens, cats & dogs. 


They are members of the Huntsman Club in Metamora, Michigan, and they attend St. John the Evangelist church in Davison.


The O'Bryan Law Firm is a small town law office located in downtown Davison, Michigan, specializing in Estate Planning, Elder Law, and Estate Administration.




Photos and videos

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Practice areas


  1. Estate Planning: 50%
    23 years, 5 thousand cases
  2. Probate: 25%
    23 years, 1 thousand cases
  3. Elder Law: 25%
    23 years, 1 thousand cases



Hourly ($250-350/hour), Fixed (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

4 total 

Are you an attorney? Endorse this lawyer

  • Michael Joseph Kotarski

    Attorney O'Bryan is an energetic and compassionate attorney. He is diligent in his work with a great staff of co-workers assisting him and the needs of the client. He works hard to stay abreast of all the new changes in the law. You will find him friendly and approachable for many problems one encounters about people, relationships and law. If he cannot solve the problem he knows who to refer to for a solution. I would not hesitate to send a family member to him. He is community oriented and well known for his skill in Estate Planning and Elder Law. He has a particular passion for Trusts. I have known him for over 10 years and I endorse this lawyer.


    Michael Kotarski Guardianship Attorney
    Relationship: Worked together on matter

  • Kayleen P. Hendler

    Sean is a very knowledgeable and professional individual. He cares about his clients. Whether your estate planning needs are a simple will or a complex trust, Sean will be able to take care of it.


    Kayleen Hendler Criminal defense Attorney
    Relationship: Fellow lawyer in community

Contact info

315 N Main St
Davison, MI, 48423


MIActive And In Good Standing199312/13/2014

Professional misconduct

This lawyer was disciplined by a state licensing authority.

  1. Reprimand
    issued in MI, 1995


    Reprimand means an attorney did something wrong but may still practice law. The State gives the lawyer a public reprimand in hopes that he or she will not repeat the behavior. Details of the infraction are made part of the public record.

    Sean’s comment: “This very minor incident 20 years ago was a disagreement regarding my willingness to pursue a child custody matter for someone I discovered had a history of substance and physical abuse. I should have withdrawn sooner. That was my mistake, and I learned a valuable lesson from this incident. The Judge in this case even wrote a letter in my support. This incident had absolutely nothing to do with my estate planning practice, which has continued to be successful for over 2 decades.”

Avvo contributions
Legal answers
Award nameGrantorDate granted
ChairmanFour County Community Foundation2014
Best Law Firm 5 Years In RowDavison Index2014
5 Star Estate Planning AttorneyHour Detroit Magazine2014
5 Star Wealth ManagerHour Detroit Magazine2013
5 Star Wealth ManagerHour Detroit Magazine2011
Best of the Best AttorneyDavison Index2011
Best of Genesee CountyFlint Journal2011
Best Law FirmDavison Index2010
Probate & Estate Planning CertificateInstitute for Continuing Legal Education2005
Law ReviewTexas Tech University Law Review1989
Work experience
TitleCompany nameDuration
AttorneyO'Bryan Law Firm, PLC1991 - Present
Summer AssociateFanning, Harper & Martinson, PC,1990 - 1990
AssociateTexas Attorney General's Office1989 - 1991
Association namePosition nameDuration
Lapeer Mounted PosseMounted Posse Officer2011 - Present
4 County Community FoundationTrustee and Treasurer2004 - Present
Phi Delta PhiMember1988 - Present
Beta Theta PiMember1984 - Present
Davison Downtown Development AuthorityVice Chairman and Board Member2004 - 2010
Texas Tech Law ReviewLaw Review1989 - 1991
Legal cases
Case nameOutcome
Estate PlansPositive
Charitable TrustPositive
Farm TrustPositive
See all legal cases 
Publication nameTitleDate
BookletIt's Time to Plan2014
BookUnderstanding Cabin & Cottage Trusts2004
The Flint JournalUnderstanding Wills & Trusts2003
BookletWho Gets Grandma's Yellow Pie Plate2001
BookletHow to Keep Your Family From Fighting Like Pigs1998
School nameMajorDegreeGraduated
Texas Tech UniversityLawJD - Juris Doctor1991
Central Michigan UniversityPolitical ScienceBS - Bachelor of Science1986
Michigan State UniversityInternational LawN/AN/A
University of Windsor Faculty of LawInternational LawN/AN/A
University of TexasPolitical ScienceN/AN/A
University of Detroit Mercy School of LawLawN/AN/A
Speaking engagements
Conference nameTitleDate
Sterling HouseVA Benefits2014
St. John Catholic ChurchLiving Trusts2012
Chase BankBanking with a Trust2012
Heartland HospiceEnd of Life Issues2011
DevelopmentProtecting Your Estate from a Contest2009
Lapeer Kiwanis BreakfastLiving Trusts2008