Skip to main content

About me

I have been the managing partner at Mogren, Glessner, Roti & Ahrens for 20 years. The emphasis of my practice is in family law (divorce, custody, support, property division, modifications), wills and probate.

I try to educate clients in the law and procedure so that they can make wise decisions regarding their life and future.  I deal directly with clients, so you get my personal attention.  I am prompt in returning phone calls and letters, and make efficient use of my time (saving you money).

I grew up in south Seattle (Burien), and as a child was on the J.P. Patches, Stan Boreson and Captain Puget local television shows.  I enjoy running for fun (5K, 10K and half marathon), water and snow skiing, and volunteering in my church.  I am happily married with two adult daughters.



Photos and videos

11489 1328047234

11489 1328047172

11489 1328047121

11489 1328047091

Practice areas


  1. Divorce: 30%
    34 years
  2. Family: 30%
    34 years
  3. Wills: 20%
    34 years
  4. Child Custody: 10%
    34 years
  5. Child Support: 10%
    34 years



Hourly ($300/hour)

Payment types:

Cash, Check, Credit card

Attorney endorsements

3 total 

Are you an attorney? Endorse this lawyer

  • Jan Phillip Olson

    Peter is a wonderful lawyer. His approach to very difficult cases is an appropriate balance of firmness and compassion. He is very caring, as well as a zealous advocate for his Clients.I always get reports back from persons who have been referred to him that he makes a tough experience better, and gets great results. His personal values motivate him to provide excellent sevice, and be a good listener that wants an often painful process to be bearable.. I highly endorse him.


    Jan Olson Child Abuse Attorney
    Relationship: Fellow lawyer in community

  • Jennifer C. Rydberg

    Peter Mogren is an attorney I've known professionally for over 25 years. He is an outstanding family law attorney who meets high standards for ethics and legal competency. He provides compassionate, accurate, and effective legal advice and advocacy for his clients, and is always highly professional in his dealings with opposing counsel and the courts.


    Jennifer Rydberg Estate Planning Attorney
    Relationship: Opposing Counsel on matter

Contact info


Evergreen Building, Suite 100
15 So. Grady Way
Renton, WA, 98057-3208


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Best Law Firm in TukwilaTukwila Reporter2015
Client Distinction AwardMartindale-Hubbell2015
Best Law Firm in RentonRenton Reporter2015
Volunteer Settlement Conference MasterSouth King County Bar Association2014
30 Year AnniversaryLexisNexis2011
Settlement Conference VolunteerSouth King County Bar Association2011
Volunteer Settlement Conference MasterSouth King County Bar Association2010
Settlement Conference VolunteerKing County2009
Settlement Conference VolunteerKing County2008
Settlement Conference VolunteerKing County2007
King County Volunteer MediatorN/A2006
Work experience
TitleCompany nameDuration
Managing PartnerMOGREN, GLESSNER & ROTI, PS1987 - Present
PartnerGlessner, Mogren & Glessner1984 - 1987
AssociateHolm & Glessner1981 - 1984
Association namePosition nameDuration
Washington State Bar Association, Family Law SectionN/A2000 - Present
King County Bar AssociationMember1981 - Present
South King County Bar AssociationMember1981 - Present
Washington State Bar AssociationMember1981 - Present
Federal Court District of Western WashingtonAttorney1981 - Present
Christian Legal SocietyMember1980 - Present
Legal cases
Case nameOutcome
B.B. v R.B.Great settlement through binding arbitration (saving time and money for client).
L.P. v S.P.Client received custody of children and lifetime spousal maintenance.
J.S. v. R.S.Was able to get custody for my client with .191 restrictions (domestic violence) agaisnt the other side. Court gave our requests for property division, child support and spousal maintenance.
See all legal cases 
Publication nameTitleDate
Family Law BlogFamily Law Blog2009
MGRLAW Web PageFamily Law articles2005
School nameMajorDegreeGraduated
Continuing Legal EducationFamily Law, Wills & Probateaverage 15 CLE credits per year2014
University of Oregon School of LawLawJD - Juris Doctor1980
Seattle Pacific UniversityBusiness Administration and AccountingBA - Bachelor of Arts1977
Speaking engagements
Conference nameTitleDate
Wills & Estate PlansWills & Estate Plans2013
Todd Beamer High SchoolFamily Law Procedure2011
Street Law ConferenceFamily Law Procedure2009
MOPSWills and Estate Planning2006
INLMEstate Planning1991