Atty. Mark Decker, Esq.

Atty. Mark Decker, Esq.

A principal and the founder of the Firm, Mark has a significant construction and mechanics’ lien practice, but also have a thriving general practice. He is experienced in business formation and acquisition, general corporate and dispute work and all phases of real estate, estate planning and probate law.

Columbus Columbus 53 yrs experience 53 year
Call (380) 219-6513 Book Appointment

Corporate & General Business Formation & More Attorney · Serving Columbus, OH · 53+ Years Experience

Profile Summary

About Mark Decker, Esq. at a Glance

Mark Decker, Esq. is a Principal based in Columbus, Ohio, practicing at Decker Vonau & Carr, LLC. They have 53+ years of legal experience, licensed to practice since 1973. Their practice focuses on formation, trusts, probate, estate planning, and business. Admitted to practice in Ohio (1973). Educated at The Ohio State University (J.D., 1973) and Old Dominican College (B.A., 1970). Recognitions include AV Preeminent. Serves clients in Columbus, OH and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark Decker, Esq.

  • A principal and the founder of the Firm, Mark has a significant construction and mechanics’ lien practice, but also have a thriving general practice
  • He is experienced in business formation and acquisition, general corporate and dispute work and all phases of real estate, estate planning and probate law
  • Mark is experienced in most areas of construction, corporate and civil litigation and dispute resolution.Mark was born and raised in the Columbus Area
  • He attended what is now Ohio Dominican University, where he majored in political science and graduated cum laude in 1970
  • Mark received his law degree in 1973 from The Ohio State University Moritz College of Law, where he again graduated cum laude
  • While attending the College of Law, Mark received The Order of the Coif.As one of the primary drafters of Ohio’s current mechanics’ lien statutes, Mark lectures frequently on mechanics’ lien issues and construction-related topics for bar associations and numerous construction associations and organizations
  • He has served as the chairman of both the Construction Law Committee of the Columbus Bar Association and the Law Group of the Builders Exchange of Central Ohio.Mark is an active member in numerous construction-related organizations and associations
  • He belongs to the Builder’s Exchange of Central Ohio, the Building Industry Association of Central Ohio, the Home Builders Association of Ohio and the American Subcontractors Association of Central Ohio, to name a few
  • He is a past construction panel member of the American Arbitration Association.Mark is an experienced arbitrator and mediator, especially in construction related matters including commercial construction, public projects, and residential/consumer disputes
  • He is available to act as a private arbitrator/mediator
  • Arbitration and mediation charges can be by the day, 1⁄2 day, or a reduced hourly rate fee upon request.Mark and his wife Linda, who is the Firm’s bookkeeper, live in Pickerington and are active members of St. Philip the Apostle Catholic Church in Columbus

Practice Areas Explained

Mark Decker, Esq.'s Areas of Legal Practice

Each practice area below reflects the types of cases Mark Decker, Esq. handles, with a practical overview of what that area of law involves and how it may apply to your situation in Columbus.

Business Formation in Columbus

Mark Decker, Esq. is one of 35,326 formation attorneys indexed nationally. Browse formation attorneys in Ohio →

Trusts in Columbus

Mark Decker, Esq. is one of 103,428 trusts attorneys indexed nationally. Browse trusts attorneys in Ohio →

Probate in Columbus

Mark Decker, Esq. is one of 127,041 probate attorneys indexed nationally. Browse probate attorneys in Ohio →

Estate Planning & Probate in Columbus

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Mark Decker, Esq. is one of 224,789 estate planning attorneys indexed nationally. Browse estate planning attorneys in Ohio →

Business & Corporate Law in Columbus

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Mark Decker, Esq. is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Ohio →

Jurisdictional Context

Why Local Counsel Matters in Columbus

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 Columbus 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.

Columbus Courts and Legal Process

Choosing a Columbus-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 Columbus or all attorneys in Ohio.

Frequently Asked

Common Questions About Mark Decker, Esq.

Where is Mark Decker, Esq.'s law office located?
Mark Decker, Esq.'s law practice is located in Columbus, Ohio. The firm is Decker Vonau & Carr, LLC. You can contact the office directly through this profile page.
What practice areas does Mark Decker, Esq. handle?
Mark Decker, Esq. focuses on formation, trusts, probate, estate planning, business. Each practice area listed reflects experience handling cases of that type in Ohio.
How long has Mark Decker, Esq. practiced law?
Mark Decker, Esq. has 53+ years of legal experience and has been licensed since 1973.
Where did Mark Decker, Esq. go to law school?
Mark Decker, Esq. earned their education at (J.D., 1973); (B.A., 1970).
How can I contact Mark Decker, Esq. for a consultation?
You can contact Mark Decker, Esq. directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark Decker, Esq. received?
Mark Decker, Esq.'s notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in Columbus Choose Mark Decker, Esq.

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 Decker, Esq.'s practice in the field of formation, trusts, probate, estate planning, and business.

Decade-Tested Legal Experience

Mark Decker, Esq. brings 53+ 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 formation, trusts, and probate, Mark Decker, Esq. can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Columbus

A Columbus-based practice means Mark Decker, Esq. 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 Decker, Esq. Handles in Columbus

Below is a representative sample of the types of matters Mark Decker, Esq. 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.

Last wills and testaments
Estate Planning
Revocable living trusts
Estate Planning
Powers of attorney
Estate Planning
Probate proceedings
Estate Planning
Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business

This list is illustrative, not exhaustive. Contact Mark Decker, Esq. directly to discuss the specifics of your situation.

Search Reference

How People Find Mark Decker, Esq. Online

Prospective clients searching for legal help in Columbus commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Mark Decker, Esq..

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mark Decker, Esq. directly.

Education & Law School Background

J.D.
The Ohio State University
- 1973
B.A.
Old Dominican College
- 1970

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

Ohio
Admitted: 1973

Client Reviews & Ratings — Mark Decker, Esq.

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