Atty. Patrick O'Brien
Patrick O'Brien is a lawyer practicing corporate, capital markets, high technology and 6 other areas of law. Patrick received a B.A. degree from University of Illinois in 1983, and has been licensed for 37 years.
Capital Markets & More Attorney · Serving Boston, MA · 37+ Years Experience
Profile Summary
About Patrick O'Brien at a Glance
Patrick O'Brien is a Partner based in Boston, Massachusetts, practicing at Ropes & Gray LLP. They have 37+ years of legal experience, licensed to practice since 1989. Their practice focuses on business, ip, and m&a. Admitted to practice in Massachusetts (1989) and Illinois (1990). Educated at Boston University School of Law (J.D., 1989) and University of Illinois (B.A., 1983). Serves clients in Boston, MA and the surrounding metropolitan area.
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About Patrick O'Brien
- Patrick O'Brien is a lawyer practicing corporate, capital markets, high technology and 6 other areas of law
- Patrick received a B.A. degree from University of Illinois in 1983, and has been licensed for 37 years
- Patrick practices at Ropes & Gray LLP in Boston, MA
Practice Areas Explained
Patrick O'Brien's Areas of Legal Practice
Each practice area below reflects the types of cases Patrick O'Brien handles, with a practical overview of what that area of law involves and how it may apply to your situation in Boston.
Business & Corporate Law in Boston
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Patrick O'Brien is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Massachusetts →
Intellectual Property in Boston
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Patrick O'Brien is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in Massachusetts →
Mergers & Acquisitions in Boston
Patrick O'Brien is one of 49,430 m&a attorneys indexed nationally. Browse m&a attorneys in Massachusetts →
Jurisdictional Context
Why Local Counsel Matters in Boston
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 Boston 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.
Boston Courts and Legal Process
Choosing a Boston-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 Boston or all attorneys in Massachusetts.
Frequently Asked
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Professional Profile
Why Clients in Boston Choose Patrick O'Brien
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 Patrick O'Brien's practice in the field of business, ip, and m&a.
Decade-Tested Legal Experience
Patrick O'Brien brings 37+ 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 and Illinois, Patrick O'Brien can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, ip, and m&a, Patrick O'Brien can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Boston
A Boston-based practice means Patrick O'Brien 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 Patrick O'Brien Handles in Boston
Below is a representative sample of the types of matters Patrick O'Brien 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 Patrick O'Brien directly to discuss the specifics of your situation.
Search Reference
How People Find Patrick O'Brien Online
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Patrick O'Brien's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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