Atty. Deanne C. Siemer

Atty. Deanne C. Siemer

Deanne C. Siemer is a lawyer practicing agriculture law, mediation, civil practice and 2 other areas of law.

Washington Washington 58 yrs experience 58 year
Book Appointment

Profile Summary

About Deanne C. Siemer at a glance

Deanne C. Siemer is a contracts, litigation, adr, and agriculture attorney based in Washington, District of Columbia. They have 58+ years of legal experience, licensed to practice since 1968. Admitted to practice in New York (1968), District of Columbia (1969), Maryland (1972), and Trust Territory of the Pacific Islands Commonwealth of Northern Mariana Islands (1976). Educated at Harvard Law School (LL.B., 1968) and George Washington University (B.A., 1962). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Deanne C. Siemer is a lawyer practicing agriculture law, mediation, civil practice and 2 other areas of law
  • Deanne received a B.A. degree from George Washington University in 1962, and has been licensed for 58 years
  • Deanne practices in Washington, DC

Practice Areas Explained

Deanne C. Siemer's Areas of Practice

Each practice area below reflects the types of cases Deanne C. Siemer handles, with a brief overview of what that area of law covers.

Contracts

Deanne C. Siemer is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in District of Columbia →

Civil Litigation

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

Deanne C. Siemer 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.

Deanne C. Siemer is one of 73,906 adr attorneys indexed nationally. Browse adr attorneys in District of Columbia →

Agricultural Law

Agriculture attorneys for farm operations, ag finance, land use, water rights, and agribusiness.

Deanne C. Siemer is one of 4,793 agriculture attorneys indexed nationally. Browse agriculture 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 Deanne C. Siemer

Where is Deanne C. Siemer's law office located?
Deanne C. Siemer's law practice is located in Washington, District of Columbia. You can contact the office directly through this profile page.
What practice areas does Deanne C. Siemer handle?
Deanne C. Siemer focuses on contracts, litigation, adr, agriculture. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Deanne C. Siemer practiced law?
Deanne C. Siemer has 58+ years of legal experience and has been licensed since 1968.
Where did Deanne C. Siemer go to law school?
Deanne C. Siemer earned their education at (LL.B., 1968); (B.A., 1962).
How can I contact Deanne C. Siemer for a consultation?
You can contact Deanne C. Siemer 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

LL.B.
Harvard Law School
- 1968
B.A.
George Washington University
- 1962

Bar Admissions

New York
Admitted: 1968
District of Columbia
Admitted: 1969
Maryland
Admitted: 1972
Trust Territory of the Pacific Islands Commonwealth of Northern Mariana Islands
Admitted: 1976

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.