Atty. Patrick M. Callahan
Patrick M. Callahan is a lawyer practicing litigation/controversy, appellate and supreme court litigation, business trial group and 1 other area of law.
Profile Summary
About Patrick M. Callahan at a glance
Patrick M. Callahan is an U.S. Attorney's Off. based in Waltham, Massachusetts. They have 25+ years of legal experience, licensed to practice since 2001. Their practice focuses on business, ip, litigation, and appellate. Admitted to practice in Massachusetts (2001). Educated at Suffolk University Law School (J.D., 2000) and Bowdoin College (B.A. Government, 1995). Serands clients in Waltham, MA and the surrounding metropolitan area.
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About
- Patrick M. Callahan is a lawyer practicing litigation/controversy, appellate and supreme court litigation, business trial group and 1 other area of law
- Patrick received a B.A. degree from Bowdoin College in 1995, and has been licensed for 25 years
- Patrick practices in Waltham, MA
Practice Areas Explained
Patrick M. Callahan's Areas of Practice
Each practice area below reflects the types of cases Patrick M. Callahan handles, with a brief overview of what that area of law covers.
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Patrick M. Callahan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Massachusetts →
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Patrick M. Callahan is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Massachusetts →
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Patrick M. Callahan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Massachusetts →
Appellate attorneys for civil and criminal appeals at state and federal court.
Patrick M. Callahan is one of 86,319 appellate attorneys indexed nationally. Browse appellate attorneys in Massachusetts →
Jurisdictional Context
Why local counsel matters in Massachusetts
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 Waltham 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 andnue, 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.
Looking for additional Massachusetts attorneys? Browse all attorneys in Waltham or all attorneys in Massachusetts.
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