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Craig P. Treneff - Westerville, OH
155 Commerce Park Dr.Suite 5 Westerville, OH 43082
Treneff Cozza Law, LLC
Westerville Family Law Mediation Lawyer
Overview
Craig P. Treneff is a graduate of the Ohio State University and Capital University Law School, where he was elected to Law Review. Prior to entering private practice in 1983, he was judicial law clerk to Justice William B. Brown of the Ohio Supreme Court and served as chief legislative assistant to the Chairman of the Finance Appropriations Committee of the Ohio House of Representatives.
He was one of the first 50 lawyers in Ohio to be certified by the Ohio State Bar Association as a family relations specialist. In addition, he is a Fellow of the American Academy of Matrimonial Lawyers, past President of the AAML Ohio Chapter, and a member of the family law committees of the Columbus, Delaware County, Ohio State and American Bar Associations. Mr. Treneff has been a regular contributor to and Editorial Board member of the Domestic Relations Journal of Ohio and contributor to the Baldwin's Ohio Domestic Relations Law treatise ("Marital and Separate Property’). He was selected as an Ohio Super Lawyer each year since 2004 and was included in The Best Lawyers in America since 2014. He was also selected as the Lawyer of the Year for 2019, 2023 and 2025 by Best Lawyers in America for Family Law for Columbus, Ohio. He has been selected as one of the top 50 Columbus lawyers since 2010 and as one of the top 5 Columbus lawyers since 2014 by Ohio Super Lawyers. He was also peer rated by Ohio Super Lawyers as one of the Top 10 lawyers in Ohio since 2016. Mr. Treneff is certified as an Arbitrator by the American Academy of Matrimonial Lawyers and has completed basic mediation training (16 hours), domestic relations mediation training (40 hours), and domestic abuse issues training (14 hours).
Mr. Treneff has been actively involved in the community and served as a member of the Westerville, Ohio, City Council 2004-2023 and served as Chairman of Council & Mayor. He has been honored "Westerville Champion," the city's highest award. He was a Member and past Chairman of the Board of Trustees of the Central Ohio Transit Authority (COTA) 2013-2024. He has previously served as President of the Board of Trustees of Directions for Youth and Families, Chairman of the Capital Campaign Planning Committee of Directions for Youth and Families, Member and Chairman of the Westerville Planning Commission, and Member of the Westerville Board of Zoning Appeals. He also has been a member of the Mid-Ohio Regional Planning Commission and President of the Central Ohio Municipal Alliance.
Mr. Treneff is a recipient of Martindale-Hubbell’s highest rating, AV* for outstanding legal ability and ethical standards. He also has a 10.0 "Superb" rating on AVVO.
*CV, BV and AV are registered certification marks of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell is the facilitator of a peer review rating process. Ratings reflect the confidential opinions of members of the Bar and the Judiciary. Martindale-Hubbell Ratings fall into two categories - legal ability and general ethical standards.
About Craig P. Treneff
Practice Areas
- Family Law Mediation
Litigation
- 100%
Current Employment Position(s)
- Owner
Qualifications
Bar Admissions
- Ohio, 1981
- U.S. District Court Southern District of Ohio, 1982
Specialties and Certifications
- Family Relations Specialist, Ohio State Bar Association
Other Affiliations
- American Academy of Matrimonial Lawyers (Member)
- Columbus Bar Association, Family Law Committee (Member)
- Ohio State Bar Association, Family Law Committee (Member)
- American Bar Association, Family Law Committee (Member)
- Delaware County Bar Association, Family Law Committee (Member)
Education
- Capital University Law School, Columbus, Ohio, 1981
J.D. - Ohio State University, Columbus, Ohio, 1974
B.A.
Major: English
Past Positions
- Justice William B. Brown of the Ohio Supreme Court, Law Clerk
- Finance-Appropriations Committee of the Ohio House of Representatives, Chief Legislative Assistant to the Chairman
Classes and Seminars
- Remedies in High Conflict Custody Cases, American Bar Association, Family Law Section, May 15, 2014 - May 19, 2014
- Program Chair, American Academy of Matrimonial Lawyers Annual Symposium on Family Law, 2007 - 2008
- Changes to Ohio Pension Law, Ohio State Bar Association
- Valuation of Real Property and Business Assets, Ohio Bar Association
- UCCJEA Registration and Enforcement, Columbus Bar Association
- Moderator, Social Security Benefits and Family Law, American Bar Association, Family Law Section
- Moderator, Cross-examining the Mental Health Expert, American Bar Association, Family Law Section
Achievements
Other Sources of Feedback About Craig P. Treneff
Included on the 2025 Ohio Super Lawyers list
Past Lists
- 2024 Ohio Super Lawyers list
- 2023 Ohio Super Lawyers list
- 2022 Ohio Super Lawyers list
- 2021 Ohio Super Lawyers list
- 2020 Ohio Super Lawyers list
- 2019 Ohio Super Lawyers list
- 2018 Ohio Super Lawyers list
- 2017 Ohio Super Lawyers list
- 2016 Ohio Super Lawyers list
- 2015 Ohio Super Lawyers list
- 2014 Ohio Super Lawyers list
- 2013 Ohio Super Lawyers list
- 2012 Ohio Super Lawyers list
- 2011 Ohio Super Lawyers list
- 2010 Ohio Super Lawyers list
- 2009 Ohio Super Lawyers list
- 2008 Ohio Super Lawyers list
- 2007 Ohio Super Lawyers list
- 2006 Ohio Super Lawyers list
- 2005 Ohio Super Lawyers list
- 2004 Ohio Super Lawyers list
Honors
- Fellow, American Academy of Matrimonial Lawyers - President Ohio Chapter
- Listed in Who's Who in the Midwest
- Listed in Who's Who in American Law
- Listed in Who's Who in America
- Selected for Ohio Super Lawyers 2004
- Selected for Ohio Super Lawyers 2005
- Selected for Ohio Super Lawyers 2006
- Selected for Ohio Super Lawyers 2007
- Selected for Ohio Super Lawyers 2008
- Selected for Ohio Super Lawyers 2009
- Selected for Ohio Super Lawyers 2010--Top 50 Lawyer in Columbus
- Selected for Ohio Super Lawyers 2011--Top 100 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2011--Top 50 Lawyer in Columbus
- Selected for Ohio Super Lawyers 2012--Top 100 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2012--Top 50 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2013--Top 100 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2013--Top 50 Lawyer in Columbus
- Selected for Best Lawyers in America 2014
- Selected for Ohio Super Lawyers 2014--Top 100 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2014--Top 5 Lawyer in Columbus
- Selected for Best Lawyers in America 2015
- Selected for Ohio Super Lawyers 2015--Top 100 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2015--Top 5 Lawyer in Columbus
- Selected for Best Lawyers in America 2016
- Selected for Ohio Super Lawyers 2016--Top 5 Lawyer in Columbus
- Selected for Ohio Super Lawyers 2016--Top 10 Lawyer in Ohio
- Selected for Best Lawyers in America 2017
- Selected for Ohio Super Lawyers 2017-Top 10 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2017--Top 5 Lawyer in Columbus
- Selected for Best Lawyers in America 2018
- Selected for Ohio Super Lawyers 2018-Top 10 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2018--Top 5 Lawyer in Columbus
- Selected for Best Lawyers in America 2019—Lawyer of the Year
- Selected for Ohio Super Lawyers 2019-Top 10 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2019--Top 5 Lawyer in Columbus
- Selected for Best Lawyers in America 2020
- Selected for Ohio Super Lawyers 2020-Top 10 Lawyer in Ohio
- Selected for Ohio Super Lawyers 2020--Top 5 Lawyer in Columbus
- Selected for Best Lawyers in America 2021
- Selected for Top 5 Lawyers in Columbus Ohio Super Lawyers 2021
- Selected for Top 10 Lawyers in Ohio, Ohio Super Lawyers 2021
- Selected for Best Lawyers in America 2022
- Selected for Top 5 Lawyers in Columbus Ohio Super Lawyers 2022
- Selected for Top 10 Lawyers in Ohio, Ohio Super Lawyers 2022
- Selected for Best Lawyers in America 2023—Lawyer of the Year
- Selected for Top 5 Lawyers in Columbus Ohio Super Lawyers 2023
- Selected for Top 10 Lawyers in Ohio, Ohio Super Lawyers 2023
- Selected for Best Lawyers in America 2024
- Selected for Top 5 Lawyers in Columbus Ohio Super Lawyers 2024
- Selected for Top 10 Lawyers in Ohio, Ohio Super Lawyers 2024
- Selected for Best Lawyers in America 2025 - Lawyer of the year
- Selected for Top 5 Lawyers in Columbus Ohio Super Lawyers 2025
- Selected for Top 10 Lawyers in Ohio, Ohio Super Lawyers 2025
Office Information
Address
155 Commerce Park Dr.Suite 5 Westerville, OH 43082
Phone
Fax
- 614-891-4301
Accepts Credit Cards
Yes
Websites
Publication
Articles
- Morganstern/Sowald Ohio Domestic Relations Law, Marital Property Chapter, Thomson West
- Member, Board of Advisors, Domestic Relations Journal of Ohio, Thomson West
Representative Cases
- Heritage Hills, Ltd, v. Deacon, 49 Ohio St.3d 80, 1990, Ohio, 19900395
- Bd. of Edu. of Worthington S. D. v. Bd. of Revision of Franklin, 85 Ohio St.3d 156, 1999, Ohio, 1999066252
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