Atty. Mark Henry Tueffers

Atty. Mark Henry Tueffers

Mark Henry Tueffers is a lawyer practicing real estate, tax, construction / development. Mark received a B.A.B.A. degree from University of Washington, and has been licensed for 43 years.

Mercer Island Mercer Island 43 yrs experience 43 year
Call (858) 221-4129 Book Appointment

Profile Summary

About Mark Henry Tueffers at a glance

Mark Henry Tueffers is a Member based in Mercer Island, Washington, practicing at Tueffers, Guckian & Gamon, PLLC. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on real estate and tax. Admitted to practice in Washington (1983). Educated at University of Puget Sound J.D. (—) and University of Washington B.A.B.A. (—). Serands clients in Mercer Island, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Henry Tueffers is a lawyer practicing real estate, tax, construction / development
  • Mark received a B.A.B.A. degree from University of Washington, and has been licensed for 43 years
  • Mark practices at Tueffers, Guckian & Gamon, PLLC in Mercer Island, WA

Practice Areas Explained

Mark Henry Tueffers's Areas of Practice

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

Real Estate Law

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

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

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

Mark Henry Tueffers is one of 85,302 tax attorneys indexed nationally. Browse tax 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 Henry Tueffers

Where is Mark Henry Tueffers's law office located?
Mark Henry Tueffers's law practice is located in Mercer Island, Washington. The firm is Tueffers, Guckian & Gamon, PLLC. You can contact the office directly through this profile page.
What practice areas does Mark Henry Tueffers handle?
Mark Henry Tueffers focuses on real estate, tax. Each practice area listed reflects experience handling cases of that type in Washington.
How long has Mark Henry Tueffers practiced law?
Mark Henry Tueffers has 43+ years of legal experience and has been licensed since 1983.
Where did Mark Henry Tueffers go to law school?
Mark Henry Tueffers earned their education at (—); (—).
How can I contact Mark Henry Tueffers for a consultation?
You can contact Mark Henry Tueffers 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.

Education

University of Puget Sound J.D.
- In Progress
University of Washington B.A.B.A.
- In Progress

Bar Admissions

Washington
Admitted: 1983

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