Atty. Mark David Decastro
Mark David Decastro is a lawyer practicing appellate practice, federal civil litigation, election and 8 other areas of law. Mark received a B.A. degree from University of Kentucky in 2001, and has been licensed for 21 years.
Appellate Practice & More Attorney · Serving Springfield, OH · 21+ Years Experience
Profile Summary
About Mark David Decastro at a Glance
Mark David Decastro is an Associate based in Springfield, Ohio, practicing at Harkins & Associates. They have 21+ years of legal experience, licensed to practice since 2005. Their practice focuses on trusts, probate, estate planning, business, and litigation. Admitted to practice in Ohio (2005). Educated at The Ohio State University (J.D., 2005) and University of Kentucky (B.A., 2001). Recognitions include Peer Reviewed. Active member of Clark County, Ohio State and American Bar Associations. Serves clients in Springfield, OH and the surrounding metropolitan area.
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About Mark David Decastro
- Mark David Decastro is a lawyer practicing appellate practice, federal civil litigation, election and 8 other areas of law
- Mark received a B.A. degree from University of Kentucky in 2001, and has been licensed for 21 years
- Mark practices at Harkins & Associates in Springfield, OH
Practice Areas Explained
Mark David Decastro's Areas of Legal Practice
Each practice area below reflects the types of cases Mark David Decastro handles, with a practical overview of what that area of law involves and how it may apply to your situation in Springfield.
Trusts in Springfield
Mark David Decastro is one of 103,428 trusts attorneys indexed nationally. Browse trusts attorneys in Ohio →
Probate in Springfield
Mark David Decastro is one of 127,041 probate attorneys indexed nationally. Browse probate attorneys in Ohio →
Estate Planning & Probate in Springfield
An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.
Mark David Decastro is one of 224,789 estate planning attorneys indexed nationally. Browse estate planning attorneys in Ohio →
Business & Corporate Law in Springfield
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Mark David Decastro is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Ohio →
Civil Litigation in Springfield
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Mark David Decastro is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Ohio →
Jurisdictional Context
Why Local Counsel Matters in Springfield
Practicing law in Ohio. Legal matters in Ohio are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Springfield are typically filed in the local municipal court or the appropriate Ohio state district court, depending on subject matter and amount in controversy. An attorney licensed in Ohio 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 Ohio courts without local counsel or pro hac vice admission.
Springfield Courts and Legal Process
Choosing a Springfield-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 Ohio attorneys? Browse all attorneys in Springfield or all attorneys in Ohio.
Frequently Asked
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Professional Profile
Why Clients in Springfield Choose Mark David 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 David Decastro's practice in the field of trusts, probate, estate planning, business, and litigation.
Decade-Tested Legal Experience
Mark David Decastro brings 21+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering trusts, probate, and estate planning, Mark David Decastro can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Springfield
A Springfield-based practice means Mark David Decastro 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 David Decastro Handles in Springfield
Below is a representative sample of the types of matters Mark David Decastro has experience with under Ohio 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 David Decastro directly to discuss the specifics of your situation.
Search Reference
How People Find Mark David Decastro Online
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Mark David Decastro's Practice Areas & Specializations
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