Atty. Mark L. Boon

Atty. Mark L. Boon

Attorney Mark L. Boon is president and the firm's estate planning and probate specialist.

Longview Longview 50 yrs experience 50 year
Call (430) 240-4152 Book Appointment

Estate Planning And Probate Attorney · Serving Longview, TX · 50+ Years Experience

Profile Summary

About Mark L. Boon at a Glance

Mark L. Boon is a President based in Longview, Texas, practicing at Boon, Calk, Echols, Coleman & Goolsby, PLLC. They have 50+ years of legal experience, licensed to practice since 1976. Their practice focuses on probate and estate planning. Admitted to practice in Texas (1976) and U.S. District Court, Eastern District of Texas (1978). Educated at The University of Texas School of Law (J.D., 1976) and Tyler Junior College (A.A., 1971). Recognitions include AV Preeminent. Active member of State Bar of Texas. Serves clients in Longview, TX and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark L. Boon

  • Attorney Mark L. Boon is president and the firm's estate planning and probate specialist
  • In addition to three decades’ experience practicing law in Texas, Mr. Boon is board certified in Estate Planning and Probate Law by the Texas Board of Legal Specialization and a Certified Public Accountant who is admitted to practice before the U.S
  • Tax Court
  • Mr. Boon is also the recipient of Martindale-Hubbell's "AV" preeminent peer rating.* An active member in Longview’s legal and community organizations, Mr. Boon is a member of the Real Estate, Probate, and Trust Law and Taxation Sections of the State Bar of Texas, a member of Good Shepherd Health System Board of Directors, a member of East Texas Community Foundation Board of Directors, a member of the LeTourneau University President’s Advisors Committee, and a member of the Parks and Leisure Foundation of Longview Board of Directors
  • Mr. Boon resides in Longview, Texas, with his wife, Janet
  • Certified Legal Specialities Estate Planning and Probate Law, Texas Board of Legal Specialization, Board Certified Certified Public Accountant Pro Bono Activities • Good Shepherd Health System • Good Shepherd Medical Center • Longview Rotary Club • Longview Estate Planning Council • East Texas Community Foundation • LeTourneau University President’s Advisory Committee Fraternities • Phi Theta Kappa • Beta Alpha Psi • Phi Alpha Phi • Beta Gamma Sigma • Phi Delta Phi Professional Associations and Memberships • State Bar of Texas, Real Estate, Probate and Trust Law Sections • State Bar of Texas, Taxation Section

Practice Areas Explained

Mark L. Boon's Areas of Legal Practice

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

Probate in Longview

Mark L. Boon is one of 127,041 probate attorneys indexed nationally. Browse probate attorneys in Texas →

Estate Planning & Probate in Longview

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

Mark L. Boon is one of 224,789 estate planning attorneys indexed nationally. Browse estate planning attorneys in Texas →

Jurisdictional Context

Why Local Counsel Matters in Longview

Practicing law in Texas. Legal matters in Texas are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Longview are typically filed in the local municipal court or the appropriate Texas state district court, depending on subject matter and amount in controversy. An attorney licensed in Texas 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 Texas courts without local counsel or pro hac vice admission.

Longview Courts and Legal Process

Choosing a Longview-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 Texas attorneys? Browse all attorneys in Longview or all attorneys in Texas.

Frequently Asked

Common Questions About Mark L. Boon

Where is Mark L. Boon's law office located?
Mark L. Boon's law practice is located in Longview, Texas. The firm is Boon, Calk, Echols, Coleman & Goolsby, PLLC. You can contact the office directly through this profile page.
What practice areas does Mark L. Boon handle?
Mark L. Boon focuses on probate, estate planning. Each practice area listed reflects experience handling cases of that type in Texas.
How long has Mark L. Boon practiced law?
Mark L. Boon has 50+ years of legal experience and has been licensed since 1976.
Where did Mark L. Boon go to law school?
Mark L. Boon earned their education at (J.D., 1976); (A.A., 1971).
How can I contact Mark L. Boon for a consultation?
You can contact Mark L. Boon 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 L. Boon received?
Mark L. Boon's notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in Longview Choose Mark L. Boon

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 L. Boon's practice in the field of probate and estate planning.

Decade-Tested Legal Experience

Mark L. Boon brings 50+ 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 Texas and U.S. District Court, Eastern District of Texas, Mark L. Boon can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering probate and estate planning, Mark L. Boon can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Longview

A Longview-based practice means Mark L. Boon 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 L. Boon Handles in Longview

Below is a representative sample of the types of matters Mark L. Boon has experience with under Texas 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

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

Search Reference

How People Find Mark L. Boon Online

Prospective clients searching for legal help in Longview 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 L. Boon.

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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 L. Boon directly.

Mark L. Boon's Practice Areas & Specializations

Education & Law School Background

J.D.
The University of Texas School of Law
- 1976
A.A.
Tyler Junior College
- 1971

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

Texas
Admitted: 1976
U.S. District Court, Eastern District of Texas
Admitted: 1978

Client Reviews & Ratings — Mark L. Boon

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