Atty. Mark John Decastro
Mark John Decastro is a lawyer practicing antitrust, ucl and privacy. Mark received a B.A. degree from Cornell University in 1979, and has been licensed for 40 years.
Antitrust, UCL And Privacy Attorney · Serving Las Vegas, NV · 40+ Years Experience
Profile Summary
About Mark John Decastro at a Glance
Mark John Decastro is an attorney based in Las Vegas, Nevada. They have 40+ years of legal experience, licensed to practice since 1986. Admitted to practice in California (1986). Educated at University of California at Davis (J.D., 1985) and Cornell University (B.A., 1979). Serves clients in Las Vegas, NV and the surrounding metropolitan area.
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About Mark John Decastro
- Mark John Decastro is a lawyer practicing antitrust, ucl and privacy
- Mark received a B.A. degree from Cornell University in 1979, and has been licensed for 40 years
- Mark practices in Las Vegas, NV
Jurisdictional Context
Why Local Counsel Matters in Las Vegas
Practicing law in Nevada. Legal matters in Nevada are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Las Vegas are typically filed in the local municipal court or the appropriate Nevada state district court, depending on subject matter and amount in controversy. An attorney licensed in Nevada 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 Nevada courts without local counsel or pro hac vice admission.
Las Vegas Courts and Legal Process
Choosing a Las Vegas-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.
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Professional Profile
Why Clients in Las Vegas Choose Mark John Decastro
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 John Decastro's practice.
Decade-Tested Legal Experience
Mark John Decastro brings 40+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Local Presence in Las Vegas
A Las Vegas-based practice means Mark John Decastro attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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Mark John Decastro's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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