Atty. Mark I. Bailen

Atty. Mark I. Bailen

Mr. Mark I.

Washington Washington 29 yrs experience 29 year
Call (202) 770-4377 Book Appointment

Profile Summary

About Mark I. Bailen at a glance

Mark I. Bailen is a Partner based in Washington, District of Columbia, practicing at Baker And Hostetler Llp. They have 29+ years of legal experience, licensed to practice since 1997. Their practice focuses on business, ip, m&a, and litigation. Admitted to practice in Maryland (1997), Massachusetts (1997), District of Columbia (1998), and U.S. District Court, District of Maryland (1998). Educated at New York University School of Law (J.D., 1997) and Cornell University (B.A., 1992). Recognitions include Peer Reviewed. Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Mark I. Bailen is a lawyer practicing intellectual property, commercial litigation, media and technology mergers and acquisitions
  • Mark received a B.A. degree from Cornell University in 1992, and has been licensed for 29 years
  • Mark practices at Baker & Hostetler LLP in Washington, DC

Practice Areas Explained

Mark I. Bailen's Areas of Practice

Each practice area below reflects the types of cases Mark I. Bailen 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 I. Bailen is one of 501,317 business attorneys indexed nationally. Browse business attorneys in District of Columbia →

Intellectual Property

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

Mark I. Bailen is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →

Mergers & Acquisitions

Mark I. Bailen is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in District of Columbia →

Civil Litigation

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

Mark I. Bailen is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 I. Bailen

Where is Mark I. Bailen's law office located?
Mark I. Bailen's law practice is located in Washington, District of Columbia. The firm is Baker And Hostetler Llp. You can contact the office directly through this profile page.
What practice areas does Mark I. Bailen handle?
Mark I. Bailen focuses on business, ip, m&a, litigation. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Mark I. Bailen practiced law?
Mark I. Bailen has 29+ years of legal experience and has been licensed since 1997.
Where did Mark I. Bailen go to law school?
Mark I. Bailen earned their education at (J.D., 1997); (B.A., 1992).
How can I contact Mark I. Bailen for a consultation?
You can contact Mark I. Bailen 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 I. Bailen received?
Mark I. Bailen's notable recognition includes: Peer Reviewed.

Education

J.D.
New York University School of Law
- 1997
B.A.
Cornell University
- 1992

Awards

Peer Reviewed

Bar Admissions

Maryland
Admitted: 1997
Massachusetts
Admitted: 1997
District of Columbia
Admitted: 1998
U.S. District Court, District of Maryland
Admitted: 1998
U.S. District Court, District of Columbia
Admitted: 2001
U.S. Court of Appeals, District of Columbia Circuit
Admitted: 2005
U.S. District Court, District of Massachusetts
Admitted: 2010
New York
Admitted: 2011

Reviews

3.4
1 Review
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