Atty. Mark A. Clausen

Atty. Mark A. Clausen

Mark A Clausen has retired from the practice of law after 38 years. Please contact Tyler Thomas at Clausen Law Firm, PLLC for representation or advice on any pending issues or matters

Mercer Island Mercer Island 40 yrs experience 40 year
Call (206) 922-5339 Book Appointment

Profile Summary

About Mark A. Clausen at a glance

Mark A. Clausen is an Of Counsel based in Mercer Island, Washington, practicing at Clausen Law Firm, PLLC. They have 40+ years of legal experience, licensed to practice since 1986. Their practice focuses on contracts, personal injury, business, real estate, and litigation. Admitted to practice in Washington (1986). Educated at College of William and Mary (J.D., 1984) and Oakland University (B.A. Journalism, 1980). Recognitions include BV Distinguished. Serands clients in Mercer Island, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark A Clausen has retired from the practice of law after 38 years
  • Please contact Tyler Thomas at Clausen Law Firm, PLLC for representation or advice on any pending issues or matters

Practice Areas Explained

Mark A. Clausen's Areas of Practice

Each practice area below reflects the types of cases Mark A. Clausen handles, with a brief overview of what that area of law covers.

Contracts

Mark A. Clausen is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Washington →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Mark A. Clausen is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Washington →

Business & Corporate Law

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

Mark A. Clausen is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Washington →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Mark A. Clausen is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Washington →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mark A. Clausen is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Washington →

Jurisdictional Context

Why local counsel matters in Washington

Practicing law in Washington. Legal matters in Washington are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Mercer Island are typically filed in the local municipal court or the appropriate Washington state district court, depending on subject matter and amount in controversy. An attorney licensed in Washington brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Washington courts without local counsel or pro hac vice admission.

Looking for additional Washington attorneys? Browse all attorneys in Mercer Island or all attorneys in Washington.

Frequently Asked

Common questions about Mark A. Clausen

Where is Mark A. Clausen's law office located?
Mark A. Clausen's law practice is located in Mercer Island, Washington. The firm is Clausen Law Firm, PLLC. You can contact the office directly through this profile page.
What practice areas does Mark A. Clausen handle?
Mark A. Clausen focuses on contracts, personal injury, business, real estate, litigation. Each practice area listed reflects experience handling cases of that type in Washington.
How long has Mark A. Clausen practiced law?
Mark A. Clausen has 40+ years of legal experience and has been licensed since 1986.
Where did Mark A. Clausen go to law school?
Mark A. Clausen earned their education at (J.D., 1984); (B.A. Journalism, 1980).
How can I contact Mark A. Clausen for a consultation?
You can contact Mark A. Clausen 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 A. Clausen received?
Mark A. Clausen's notable recognition includes: BV Distinguished.

Education

J.D.
College of William and Mary
- 1984
B.A. Journalism
Oakland University
- 1980

Awards

BV Distinguished

Bar Admissions

Washington
Admitted: 1986

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