Atty. Michael Tersillo
Michael Tersillo is a lawyer practicing biotechnology/life sciences, intellectual property services, business services and 2 other areas of law. Michael received a B.S. degree from Clarkson University in 1972, and has been licensed for 30 years.
Biotechnology & Life Sciences & More Attorney · Serving Ballwin, MO · 30+ Years Experience
Profile Summary
About Michael Tersillo at a Glance
Michael Tersillo is a business and ip attorney based in Ballwin, Missouri. They have 30+ years of legal experience, licensed to practice since 1996. Admitted to practice in Pennsylvania (1996) and Missouri registered to practice before U.S. Patent and Trademark Office (1998). Educated at Duquesne University Law School (J.D., 1996) and Clarkson University (B.S. Chemical, 1972). Serves clients in Ballwin, MO and the surrounding metropolitan area.
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About Michael Tersillo
- Michael Tersillo is a lawyer practicing biotechnology/life sciences, intellectual property services, business services and 2 other areas of law
- Michael received a B.S. degree from Clarkson University in 1972, and has been licensed for 30 years
- Michael practices in Ballwin, MO
Practice Areas Explained
Michael Tersillo's Areas of Legal Practice
Each practice area below reflects the types of cases Michael Tersillo handles, with a practical overview of what that area of law involves and how it may apply to your situation in Ballwin.
Business & Corporate Law in Ballwin
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Michael Tersillo is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Missouri →
Intellectual Property in Ballwin
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Michael Tersillo is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in Missouri →
Jurisdictional Context
Why Local Counsel Matters in Ballwin
Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Ballwin are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri 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 Missouri courts without local counsel or pro hac vice admission.
Ballwin Courts and Legal Process
Choosing a Ballwin-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 Missouri attorneys? Browse all attorneys in Ballwin or all attorneys in Missouri.
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Professional Profile
Why Clients in Ballwin Choose Michael Tersillo
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 Michael Tersillo's practice in the field of business and ip.
Decade-Tested Legal Experience
Michael Tersillo brings 30+ 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 Pennsylvania and Missouri registered to practice before U.S. Patent and Trademark Office, Michael Tersillo can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business and ip, Michael Tersillo can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Ballwin
A Ballwin-based practice means Michael Tersillo 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 Michael Tersillo Handles in Ballwin
Below is a representative sample of the types of matters Michael Tersillo has experience with under Missouri 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 Michael Tersillo directly to discuss the specifics of your situation.
Search Reference
How People Find Michael Tersillo Online
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Michael Tersillo's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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