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About me

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As lawyer and potential client, we need to exchange a lot of information before we decide that working together make sense. I need to understand you, your situation and what you hope to accomplish. You need to understand me, my experience, how I might be able to assist you and what it will cost to obtain my services.


Practice areas


  1. Contracts & Agreements: 60%
    32 years
  2. Real Estate: 20%
    17 years
  3. Corporate & Incorporation: 20%
    32 years



Hourly ($195-225/hour), Fixed (sometimes), Retainer (sometimes), Free consultation (30 minutes)

Payment types:

Cash, Check

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Contact info

407 Forest Trails Dr
Wexford, PA, 150909567


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV RatedMartindale-Hubbell2015
Work experience
TitleCompany nameDuration
OwnerLaw Offices of Mark R. Sullivan, Esq2001 - Present
General CounselOne Call Systems, Inc.2001 - 2010
Senior CounselJones, Gregg, Creehan & Gerace, LLP2000 - 2000
Senior CounselSable, Makoroff & Gusky1996 - 2000
OwnerThe Sullivan Law Firm, P.C.1995 - 1996
Associate and PartnerEckert Seamans1983 - 1995
Association namePosition nameDuration
Allegheny County Bar Association, Technology Utilization CommitteeVice Chair1994 - 1996
American Bar AssociationN/AN/A
Pennsylvania Bar AssociationN/AN/A
Publication nameTitleDate
Univeristy of Pittsburg Law ReviewPennsylvania Glass Sand Corp. v. Caterpillar Tractor Co.: Abuse of Pennsylvania's Products Liability Symmetry1982
School nameMajorDegreeGraduated
University of Pittsburgh School of LawLawJD - Juris Doctor1983
University of VirginiaEconomicsBA - Bachelor of Arts1980
Speaking engagements
Conference nameTitleDate
LLC WorkshopEthics2014