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About me

I am the principal and founder of The Ondrejech Law Firm, LLC.  My practice is focused in the areas of general civil litigation, criminal/traffic defense, real estate and business law.  


I serve clients throughout the state of Ohio, primarily in the Northeast Ohio counties of Cuyahoga, Medina, Lorain, Lake, Geauga, Portage and Summit counties. I also have clients in Franklin County in Central Ohio.


I am licensed to practice in all of Ohio's state and federal courts.


Practice areas


  1. Criminal Defense: 25%
    6 years
  2. DUI & DWI: 25%
    6 years
  3. Personal Injury: 25%
    8 years
  4. Real Estate: 15%
    8 years
  5. Business: 10%
    8 years



Hourly ($200-275/hour), contingent (33-40%), Fixed (sometimes), Retainer (always), Free consultation (30 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Erin Adams Armstrong

    I endorse this lawyer.


    Erin Armstrong Divorce and separation Attorney
    Relationship: Worked together on matter

  • Jonathan David Schmidt

    Mark is a great attorney and one that I would seek out myself if I ever needed assistance. I endorse this lawyer.


    Jonathan Schmidt Family Attorney
    Relationship: Friend

Contact info

The Ondrejech Law Firm, LLC

19300 Detroit Ave
Suite 202
Rocky River, OH, 44116


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
Principal/OwnerThe Ondrejech Law Firm LLC2014 - Present
Associate AttorneyFrank J. Groh-Wargo Co., L.P.A.2008 - 2014
Association namePosition nameDuration
West Shore Bar AssociationMember2014 - Present
Lakewood/Rocky River Sunrise Rotary ClubPresident-Elect2014 - Present
Ohio State Bar AssociationMember2007 - Present
Legal cases
Case nameOutcome
Wills v. KolisSale rescinded. Client awarded attorney fees in full after trial and appeal.
Franklin v. BereaVariances approved and upheld despite lawsuit from neighborhood group.
See all legal cases 
Publication nameTitleDate
Bar Journal of the Cleveland Metropolitan Bar Association, Vol. 3 No. 6Drafting Points: Facilitating Small Business Success by Drafting Workable Business Agreements2011
School nameMajorDegreeGraduated
Capital University Law SchoolLawJD - Juris Doctor2007
Ohio UniversityPolitical ScienceBA - Bachelor of Arts2004
Speaking engagements
Conference nameTitleDate
Rotary Club MeetingVocational Talk - My Life as a Lawyer2014
Monthly Networking Meeting10 Legal Musts for Your Small Business2014
New Lawyer Boot CampNetworking for Lawyers (editorial contributor)2013