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Robert Charles Bonsib

Robert Charles Bonsib

Practice areas:

Criminal Defense, Violent Crime, DUI & DWI, White Collar Crime

About Me

As a criminal defense attorney, I offer legal representation to individuals and organizations under criminal investigation or facing criminal charges in the federal courts in Maryland and the District of Columbia and in the criminal trial and appellate courts in Maryland. I have been in private practice and have been a partner at MarcusBonsib, LLC since 1990. Prior to entering private practice I served for 15 years as both a federal prosecutor in the United States Attorneys Office for the District of Maryland and as an Assistant States Attorney and then as the Deputy States Attorney for Prince George's County, Maryland. I am active in federal and local bar activities and serve on a number of court committee, including the Maryland Pattern Jury Instruction Committee. I have been appointed by the United States District Court on numerous occasions to serve on its United States Magistrate Selection Committee. I am a member the Judicial Conference for the United States Court of Appeals for the Fourth Circuit. For 20 years I have served on the Prince George's County Trial Court Nominating Commission, a Commission that must review and approve all candidates for State Circuit and District Court judicial positions prior to the candidates being considered for appointment by the Governor. In 2011 I was awarded the Robert Heeney Award by the Maryland State Bar Association recognizing a career in criminal law. I have been recognized by the Washingtonian Magazine in its last 5 "Top Lawyers" edition and by Super Lawyers. I am a Fellow in the American College of Trial Lawyers and I am listed in "Best Lawyers in America" in the practice areas of white-collar and non-white collar criminal defense.


Photos and Videos

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Practice Areas

Licensed since 1974

  1. White Collar Crime: 25%
  2. DUI & DWI: 25%
  3. Violent Crime: 25%
  4. Criminal Defense: 25%


Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

7 total 

  • Victor Manuel Del Pino

    I had the pleasure of having a case against Mr. Bonsib when I was a prosecutor. He is second to none. Level of professionalism and knowledge of the law goes unmatched.


    Victor Del Pino Criminal Defense Attorney
    Relationship: Fellow lawyer in community

  • Richard P Arnold

    I endorse this lawyer.


    Richard Arnold Criminal Defense Attorney
    Relationship: Fellow lawyer in community

Contact Info

Robert C. Bonsib Esq.

MarcusBonsib, LLC
6411 Ivy Lane, Suite 116
Greenbelt, MD, 20770-1405



DCActive 199005/24/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.

Avvo Contributions

Legal Answers


Award NameGrantorDate Granted
AV RatedMartindale-Hubbell2014
Best Lawyers White Collar &Non-White Collar Criminal DefenseBest Lawyers in America2013
Super Lawyer in Criminal DefenseSuper Lawyers Magazine2013
AV Rating for Ethics & Professional CompetenceMartindale-Hubbell2013
Top 100 LawyersThe National Trial Lawyers Association2012
Top 30 LawyersWashingtonian Magazine2011
Robert Heeney Award for Lifetime Achievement in Criminal LawMaryland State Bar Association2009
President's AwardPrince George's County Bar AssocationN/A

Work Experience

TitleCompany NameDuration
PartnerMarcusBonsib LLC1990 - 2013


Association NamePosition NameDuration
District of Columbia Bar AssociationMemberN/A
American Bar Association, Search Warrant ProjectPast MemberN/A
Maryland Criminal Pattern Jury Intructions CommitteeMemberN/A
Prince George's County Bar AssociationMemberN/A
Maryland Criminal Defense Attorney's AssocationBoard of DirectorsN/A
National Association of Criminal Defense LawyersMemberN/A
Prince George's County Bar Association, Criminal Law SectionPast ChairN/A
Maryland State Bar Association, Criminal Law & Practice SectionPast ChairN/A
Court of Appeals for the District of ColumbiaBarN/A
United States District Courts of Maryland BarMemberN/A
Fourth Circuit Bar AssociationMemberN/A
United States Courts of Appeals for the District of Columbia BarMemberN/A
Supreme Court of the United States BarMemberN/A
Maryland State Bar AssociationMemberN/A
American College of Trial LawyersFellowN/A

Legal Cases

Case NameOutcome
State v. D. T.Not guilty on all 5 counts after 3 day trial
United States v. GBMNot guilty - 10 counts
State v. J.L.Not guilty - 3 counts; guilty - 2 counts

See all Legal Cases 


Publication NameTitleDate
Prince George's County Bar NewsletterProffer Letter Agreements - Pitfalls2009
Prince George's County Bar NewsletterThe Other White Hat in the Courtroom2006
Prince George's County Bar NewsletterThe Right of Confrontation after "Crawford"2004
Prince George's County Bar NewsletterRepresenting a Client in a Criminal Investigation2002


School NameMajorDegreeGraduated
Catholic University of America, Columbus School of LawLawJD - Juris Doctor1974
Indiana UniversityN/AN/A1971

Speaking Engagements

Conference NameTitleDate
MCDAA Fall CLEFee Issues and Illegal Funds2013
Criminal Law Section Seminar4th Amendment Law - Traffic Stops and Street Accostings2013
Training for Maryland Circuit & District Court JudgesHandling the Criminal Trial2011
Prosecutors' Training ProgramEffective Closing Arguments2011
Prosecutor's Training ProgramProffer Agreements2011
Alan Goldstein Criminal Law SeminarPolice Testimony - "Testi-lying" At Motions Hearings2011
FPD Training ProgramEffective Sentencing Arguments2010
Medical Examiner-Pathologists Training ProgramExpert Witness Testimony - Tips2009
J Franklin Bourne CLECriminal Motions Practice2009
FBA Continuing Legal Education ProgramGrand Jury Practice2009
Maryland Judicial InstituteHandling the Criminal Trial2007
CLE for Maryland JudgesIssues in a Criminal Trial2006
Basic Criminal Investigators SchoolRole of the Defense Attorney2002