Atty. Gregory John Hartker

Atty. Gregory John Hartker

Gregory John Hartker is a lawyer practicing tax, corporate, taxation. Gregory received a M.B.A. degree from Duquesne University in 1997, and has been licensed for 28 years.

Irvine Irvine 28 yrs experience 28 year
Call (904) 850-9533 Book Appointment

Profile Summary

About Gregory John Hartker at a glance

Gregory John Hartker is a Partner based in Irvine, California, practicing at K&L Gates LLP. They have 28+ years of legal experience, licensed to practice since 1998. Their practice focuses on business and tax. Admitted to practice in California (1998). Educated at Duquesne University School of Law (J.D. Georgetown, 1997) and Duquesne University (M.B.A., 1997). Serands clients in Irvine, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Gregory John Hartker is a lawyer practicing tax, corporate, taxation
  • Gregory received a M.B.A. degree from Duquesne University in 1997, and has been licensed for 28 years
  • Gregory practices at K&L Gates LLP in Irvine, CA and 1 other location

Practice Areas Explained

Gregory John Hartker's Areas of Practice

Each practice area below reflects the types of cases Gregory John Hartker 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.

Gregory John Hartker is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Tax Law

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

Gregory John Hartker is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in California →

Jurisdictional Context

Why local counsel matters in California

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

Looking for additional California attorneys? Browse all attorneys in Irvine or all attorneys in California.

Frequently Asked

Common questions about Gregory John Hartker

Where is Gregory John Hartker's law office located?
Gregory John Hartker's law practice is located in Irvine, California. The firm is K&L Gates LLP. You can contact the office directly through this profile page.
What practice areas does Gregory John Hartker handle?
Gregory John Hartker focuses on business, tax. Each practice area listed reflects experience handling cases of that type in California.
How long has Gregory John Hartker practiced law?
Gregory John Hartker has 28+ years of legal experience and has been licensed since 1998.
Where did Gregory John Hartker go to law school?
Gregory John Hartker earned their education at (J.D. Georgetown, 1997); (M.B.A., 1997).
How can I contact Gregory John Hartker for a consultation?
You can contact Gregory John Hartker 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.

Practice Areas

Education

J.D. Georgetown
Duquesne University School of Law
- 1997
M.B.A.
Duquesne University
- 1997

Bar Admissions

California
Admitted: 1998

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.