Atty. Pier Douglas Deroo

Atty. Pier Douglas Deroo

Pier Douglas Deroo is a lawyer practicing litigation, patent transactions & strategic counseling, portfolio management and 5 other areas of law. Pier received a A.B. degree from Princeton University in 2006, and has been licensed for 15 years.

Washington Washington 15 yrs experience 15 year
Call (202) 738-1866 Book Appointment

Profile Summary

About Pier Douglas Deroo at a glance

Pier Douglas Deroo is a patent, real estate, ip, litigation, and adr attorney based in Washington, District of Columbia. They have 15+ years of legal experience, licensed to practice since 2011. Admitted to practice in Maryland (2011), District of Columbia US Patent & Trademark Office US Court of Appeals for the Federal Circuit (2013), and California (2017). Educated at University of Michigan Law School (J.D. Honors, 2011) and Princeton University (A.B. Chemistry, 2006). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Pier Douglas Deroo is a lawyer practicing litigation, patent transactions & strategic counseling, portfolio management and 5 other areas of law
  • Pier received a A.B. degree from Princeton University in 2006, and has been licensed for 15 years
  • Pier practices in Washington, DC

Practice Areas Explained

Pier Douglas Deroo's Areas of Practice

Each practice area below reflects the types of cases Pier Douglas Deroo handles, with a brief overview of what that area of law covers.

Patent Law

Pier Douglas Deroo is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in District of Columbia →

Real Estate Law

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

Pier Douglas Deroo is one of 316,149 real estate attorneys indexed nationally. Browse real estate 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.

Pier Douglas Deroo is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →

Civil Litigation

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

Pier Douglas Deroo is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

Pier Douglas Deroo is one of 73,906 adr attorneys indexed nationally. Browse adr 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 Pier Douglas Deroo

Where is Pier Douglas Deroo's law office located?
Pier Douglas Deroo's law practice is located in Washington, District of Columbia. You can contact the office directly through this profile page.
What practice areas does Pier Douglas Deroo handle?
Pier Douglas Deroo focuses on patent, real estate, ip, litigation, adr. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Pier Douglas Deroo practiced law?
Pier Douglas Deroo has 15+ years of legal experience and has been licensed since 2011.
Where did Pier Douglas Deroo go to law school?
Pier Douglas Deroo earned their education at (J.D. Honors, 2011); (A.B. Chemistry, 2006).
How can I contact Pier Douglas Deroo for a consultation?
You can contact Pier Douglas Deroo 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

J.D. Honors
University of Michigan Law School
- 2011
A.B. Chemistry
Princeton University
- 2006

Bar Admissions

Maryland
Admitted: 2011
District of Columbia US Patent & Trademark Office US Court of Appeals for the Federal Circuit
Admitted: 2013
California
Admitted: 2017

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.