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Peter William Mogren

also known as Peter Mogren

About me

The combination of my experience and compassion help me be an effective attorney for my clients. I try to educate my 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 have been the managing partner at Mogren, Glessner & Ahrens for 20 years. The emphasis of my practice is in family law (divorce, custody, support, property division, modifications), wills and probate.

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

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Practice areas


  1. Divorce: 35%
    34 years
  2. Family: 20%
    34 years
  3. Wills: 15%
    34 years
  4. Child Custody: 10%
    34 years
  5. Other: 20%
  6. More 



Hourly ($300/hour)

Payment types:

Cash, Check, Credit card

Attorney endorsements

8 total 

Are you an attorney? Endorse this lawyer

  • George Alan Steele

    I endorse this lawyer. I do not know him personally, but based on his answers to people's questions, he is very knowledgeable in the law.


    George Steele Personal injury Attorney
    Relationship: Other

  • Robert Charles Kaufman

    I endorse this lawyer. Peter and I have had cases with one another in the past, and we have known each other professionally for at least 30 years. Peter is a stand up guy whose word is his bond - a quality sadly lacking in many attorneys these days. He is bright, personable, and a formidable adversary, and serves his clients well.


    Robert Kaufman Divorce and separation Attorney
    Relationship: Opposing Counsel on matter

Contact info


15 S Grady Way #100
P. O. Box 90
Renton, WA, 98057


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
America's Most Honored ProfessionalsAmerican Registry2016
Top 20 Divorce Lawyers in SeattleExpertise2016
Best Law Firm in RentonRenton Reporter2016
Top ContributorAvvo2016
AV Peer Review RatingMartindale-Hubbell2016
Best Law Firm in TukwilaTukwila Reporter2015
Preeminent 5.0 out of 5Martindale-Hubbell2015
Best Law Firm in RentonRenton Reporter2015
Volunteer Settlement Conference MasterKing County Bar Association, Family Law Division2015
Volunteer Settlement Conference MasterKing County Bar Association, Family Law Divison2014
Volunteer Settlement Conference MasterKing County Bar Association, Family Law Divison2013
Best of Renton FinalistRenton Reporter2013
30 Year AnniversaryLexisNexis2011
Settlement Conference VolunteerKing County2009
Settlement Conference VolunteerKing County2008
Settlement Conference VolunteerKing County2007
Volunteer for Kent JailCity of Kent2005
Work experience
TitleCompany nameDuration
Owner/PartnerMOGREN, GLESSNER & AHRENS, PS1987 - Present
PartnerGlessner, Mogren & Glessner1984 - 1987
AssociateHolm & Glessner1981 - 1984
Association namePosition nameDuration
King County Bar AssociationVoluntary Settlement Conference Master2007 - Present
King County Bar Association, Family Law SectionMember2000 - Present
Washington State Bar Association, Family Law SectionMember2000 - Present
King County Bar AssociationDiamond Member1981 - Present
Federal Court District of Western WashingtonAttorney1981 - Present
Washington State Bar AssociationMember1981 - Present
South King County Bar AssociationMember1981 - Present
FEPCElder1999 - 2005
CBMCChairman1982 - 2002
Seattle Pacific UniversityFellow1981 - 1982
Washington State Trial Lawyers AssociationMember1981 - 1983
Christian Legal SocietyMember1980 - 2010
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 after trial.
J.S. v. R.S.Was able to get custody for my client with .191 restrictions (domestic violence) agaisnt the other parent. Court gave our requests for property division, child support and spousal maintenance after extensive trial.
See all legal cases 
Publication nameTitleDate
avvoAvvo Contributor Level 142016
MGRLAW Web PageFamily Law articles2015
Law GuruAnswered Questions2013
Family Law Case Law OutlineDivorce Case Law2010
Family Law BlogFamily Law Blog2009
Merchant CircleFamily Law Articles2008
School nameMajorDegreeGraduated
Continuing Legal EducationFamily Law, Wills & Probateaverage 15 CLE credits per year2015
University of Oregon School of LawLawJD - Juris Doctor1980
Seattle Pacific UniversityBusiness Administration and AccountingBA - Bachelor of Arts1977
Highline Community CollegeHistoryRunning Start1973
Speaking engagements
Conference nameTitleDate
Wills & Estate PlansWills & Estate Plans2013
Skyway Fire DepartmentWills and Estate Plans2012
Todd Beamer High SchoolFamily Law Procedure2011
Street Law ConferenceFamily Law Procedure2009
MOPSWills and Estate Planning2006
Adult EducationLifestyle Evangelism2000
INLMEstate Planning1991
Law DayLawers1982