Atty. Mark Brent Joachim

Atty. Mark Brent Joachim

Mark Brent Joachim is a lawyer practicing business. Mark received a B.A. degree from State University of New York at Stony Brook in 1989, and has been licensed for 33 years.

Washington Washington 33 yrs experience 33 year
Call (202) 753-4695 Book Appointment

Profile Summary

About Mark Brent Joachim at a glance

Mark Brent Joachim is an Attorney based in Washington, District of Columbia, practicing at Polsinelli Pc. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on business. Admitted to practice in New York (1993), Massachusetts (1993), California (2001), and District of Columbia (2013). Educated at Hofstra University School of Law (J.D., 1992) and State University of New York at Stony Brook (B.A., 1989). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Brent Joachim is a lawyer practicing business
  • Mark received a B.A. degree from State University of New York at Stony Brook in 1989, and has been licensed for 33 years
  • Mark practices at Polsinelli PC in Washington, DC

Practice Areas Explained

Mark Brent Joachim's Areas of Practice

Each practice area below reflects the types of cases Mark Brent Joachim 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.

Mark Brent Joachim is one of 501,317 business attorneys indexed nationally. Browse business attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

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

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about Mark Brent Joachim

Where is Mark Brent Joachim's law office located?
Mark Brent Joachim's law practice is located in Washington, District of Columbia. The firm is Polsinelli Pc. You can contact the office directly through this profile page.
What practice areas does Mark Brent Joachim handle?
Mark Brent Joachim focuses on business. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Mark Brent Joachim practiced law?
Mark Brent Joachim has 33+ years of legal experience and has been licensed since 1993.
Where did Mark Brent Joachim go to law school?
Mark Brent Joachim earned their education at (J.D., 1992); (B.A., 1989).
How can I contact Mark Brent Joachim for a consultation?
You can contact Mark Brent Joachim 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.
Hofstra University School of Law
- 1992
B.A.
State University of New York at Stony Brook
- 1989

Bar Admissions

New York
Admitted: 1993
Massachusetts
Admitted: 1993
California
Admitted: 2001
District of Columbia
Admitted: 2013

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