Atty. Diane Mayer Istvan

Atty. Diane Mayer Istvan

Diane Mayer Istvan is a lawyer practicing intellectual property, real property/land use, business/commercial. Diane received a B.A. degree from University of Michigan in 1975, and has been licensed for 48 years.

Issaquah Issaquah 48 yrs experience 48 year
Call (970) 286-0899 Book Appointment

Profile Summary

About Diane Mayer Istvan at a glance

Diane Mayer Istvan is a Member based in Issaquah, Washington, practicing at Diane M. Istvan. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on business, real estate, ip, and zoning. Admitted to practice in Washington (1978). Educated at University of Michigan (J.D., 1978) and University of Michigan (B.A., 1975). Recognitions include AV Preeminent. Serands clients in Issaquah, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Diane Mayer Istvan is a lawyer practicing intellectual property, real property/land use, business/commercial
  • Diane received a B.A. degree from University of Michigan in 1975, and has been licensed for 48 years
  • Diane practices at Diane M. Istvan in Issaquah, WA

Practice Areas Explained

Diane Mayer Istvan's Areas of Practice

Each practice area below reflects the types of cases Diane Mayer Istvan handles, with a brief overview of what that area of law covers.

Business & Corporate Law

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

Diane Mayer Istvan 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.

Diane Mayer Istvan is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Washington →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Diane Mayer Istvan is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Washington →

Land Use & Zoning

Diane Mayer Istvan is one of 40,226 zoning attorneys indexed nationally. Browse zoning 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 Issaquah 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 Issaquah or all attorneys in Washington.

Frequently Asked

Common questions about Diane Mayer Istvan

Where is Diane Mayer Istvan's law office located?
Diane Mayer Istvan's law practice is located in Issaquah, Washington. The firm is Diane M. Istvan. You can contact the office directly through this profile page.
What practice areas does Diane Mayer Istvan handle?
Diane Mayer Istvan focuses on business, real estate, ip, zoning. Each practice area listed reflects experience handling cases of that type in Washington.
How long has Diane Mayer Istvan practiced law?
Diane Mayer Istvan has 48+ years of legal experience and has been licensed since 1978.
Where did Diane Mayer Istvan go to law school?
Diane Mayer Istvan earned their education at (J.D., 1978); (B.A., 1975).
How can I contact Diane Mayer Istvan for a consultation?
You can contact Diane Mayer Istvan 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 Diane Mayer Istvan received?
Diane Mayer Istvan's notable recognition includes: AV Preeminent.

Education

J.D.
University of Michigan
- 1978
B.A.
University of Michigan
- 1975

Awards

AV Preeminent

Bar Admissions

Washington
Admitted: 1978

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