Atty. Mark L. Sullivan
Mark L. Sullivan is a lawyer practicing commercial law, real estate (property) law, professional liability and 3 other areas of law.
Commercial Law & More Attorney · Serving Cohasset, MA · 54+ Years Experience
Profile Summary
About Mark L. Sullivan at a Glance
Mark L. Sullivan is a Member based in Cohasset, Massachusetts, practicing at The Sullivan Law Firm, LLP. They have 54+ years of legal experience, licensed to practice since 1972. Their practice focuses on personal injury, business, and real estate. Admitted to practice in Massachusetts U.S. District Court, District of Massachusetts U.S. Court of Appeals, First Circuit (1972) and U.S. Supreme Court (1991). Educated at Boston University School of Law (J.D., 1972) and University of Massachusetts, Amherst (B.A., 1969). Serves clients in Cohasset, MA and the surrounding metropolitan area.
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About Mark L. Sullivan
- Mark L. Sullivan is a lawyer practicing commercial law, real estate (property) law, professional liability and 3 other areas of law
- Mark received a B.A. degree from University of Massachusetts, Amherst in 1969, and has been licensed for 54 years
- Mark practices at The Sullivan Law Firm, LLP in Cohasset, MA
Practice Areas Explained
Mark L. Sullivan's Areas of Legal Practice
Each practice area below reflects the types of cases Mark L. Sullivan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Cohasset.
Personal Injury in Cohasset
Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.
Mark L. Sullivan is one of 262,557 personal injury attorneys indexed nationally. Browse personal injury attorneys in Massachusetts →
Business & Corporate Law in Cohasset
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Mark L. Sullivan is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Massachusetts →
Real Estate Law in Cohasset
Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.
Mark L. Sullivan is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in Massachusetts →
Jurisdictional Context
Why Local Counsel Matters in Cohasset
Practicing law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Cohasset are typically filed in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controversy. An attorney licensed in Massachusetts brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Massachusetts courts without local counsel or pro hac vice admission.
Cohasset Courts and Legal Process
Choosing a Cohasset-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Massachusetts attorneys? Browse all attorneys in Cohasset or all attorneys in Massachusetts.
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Professional Profile
Why Clients in Cohasset Choose Mark L. Sullivan
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mark L. Sullivan's practice in the field of personal injury, business, and real estate.
Decade-Tested Legal Experience
Mark L. Sullivan brings 54+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Massachusetts U.S. District Court, District of Massachusetts U.S. Court of Appeals, First Circuit and U.S. Supreme Court, Mark L. Sullivan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering personal injury, business, and real estate, Mark L. Sullivan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Cohasset
A Cohasset-based practice means Mark L. Sullivan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Mark L. Sullivan Handles in Cohasset
Below is a representative sample of the types of matters Mark L. Sullivan has experience with under Massachusetts law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Mark L. Sullivan directly to discuss the specifics of your situation.
Search Reference
How People Find Mark L. Sullivan Online
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Mark L. Sullivan's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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