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About Me

Robert C. Keller was born in Chester, PA and raised in Delaware County. He graduated from Temple University achieving a Bachelor of Arts degree (English Major). Thereafter, he attended Temple University School of Law (now known as the James Beasley School of Law) and graduated in 1979 achieving a Juris Doctor degree.


As a newly graduated attorney, Robert C. Keller practiced law in the City of Chester with Joseph F. Battle, (then Mayor of the City of Chester), who eventually became the President Judge of the Delaware County Court of Common Pleas. During their years together, Mr. Keller concentrated his practice in civil litigation, real estate law, family law and bankruptcy.


In 1979, he was sworn in as an Assistant District Attorney in Delaware County, where he began his criminal law career prosecuting cases in the juvenile division. Soon thereafter, he moved to a trial team, ultimately becoming the team leader where he was responsible for managing other attorneys and staff. As an Assistant DA, he handled hundreds of jury trials and thousands of bench trials, including many high profile murder, rape, robbery, and burglary cases. When he retired from this position in 1988, as a special honor, his badge was also retired.

In 1988, after retiring as an Assistant DA, Mr. Keller opened his own private law practice in Media, followed by an office in Upper Darby. His practice focused on criminal law, personal injury law and family law. In 2003, he formed Keller, Lisgar & Williams, LLP where he has remained the Senior Partner.

Since that time, Mr. Keller’s practice has been limited exclusively to criminal defense. He has successfully tried and received not-guilty verdicts in thousands of cases throughout Delaware, Philadelphia, Chester, Bucks and Montgomery Counties.


In addition, he has tried countless matters in federal court. His trials have involved all misdemeanor and felony charges including but not limited to:

Juvenile Crimes, DUI Charges, Drugs & Controlled Substances, Assault & Battery, Terroristic Threats,Burglary, Robbery, Guns & Weapons, Homicide & Murder, Sex Crimes, Child Pornography, Internet Crimes,Appeals, Expungements, Probation & Parole Violations, Arson, Casino Crimes, Forgery, Fraud, Domestic Abuse, Child Abuse, Traffic Citations, and License Suspensions.

Mr. Keller has had the privilege of repeatedly presenting argument before the Superior Court of Pennsylvania. He is a member of the American and Pennsylvania Bar Associations and the Delaware County Bar Association, where he serves as the President of the Delaware County Association of Criminal Defense Lawyers.

Mr. Keller is married with three grown children and continues to be a prominent figure in his community. Currently he serves as the President of the Pennsylvania Academy of Ballet Society (where his daughters performed) and he is a board member and secretary for CASA Youth Advocates, Inc. He has served as a board member for the Delaware County Bar Association, as a council member in his local community, and as a board member of the Council of Services for the Aged (COSA). Today, he is an active member of the “Big Brothers/Big Sisters Society,” where he has become the proud big brother of “Little R.”

Additionally, he has lectured on various legal issues to attorneys fulfilling their continuing legal educationrequirements. As a member of the bar association, Mr. Keller sits as the chairman of arbitrations several times per year hearing civil matters and rendering awards.

Robert C. Keller is undeniably known in the legal community as an extremely aggressive and experienced criminal defense lawyer. He is at the top of his profession, consistently achieving favorable results for his clients. His trial preparation, tactics and strategies have proven invaluable to those accused of committing a crime time and time again. His dedication to protecting and preserving our fundamental rights is admirable.


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Practice Areas


  1. Criminal Defense: 100%
    36 years



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Payment Types:

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Attorney Endorsements

81 total 

  • Jonathan Davis Consadene

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    Jason Antoine Criminal Defense Attorney
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Contact Info

Keller Lisgar & Williams LLP

101 East Darby Road
Havertown, PA, 19083

18 West Front Street
Media, PA, 19063

Two Penn Center
Suite 200
Philadelphia, PA, 19102

95 Almshouse Road
Suite 202
Richboro, PA, 18954




Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Top Ten Attorney AwardNational Academy of Criminal Defense Attorneys2014
2014 Top AttorneySuburban Life Magazine2014
Outstanding Achievement in Pro Bono RepresentationLegal Aid of Southeastern PA2013
Harvey Renwrick Memorial Community Service Business AwardGHS Civic Association2007
Floyd Chapman Memorial Community Service AwardGHC Civic Association2006
Work Experience
TitleCompany NameDuration
Senior PartnerKeller, Lisgar, & Williams, LLP2003 - Present
Sole PractitionerLaw Offices of Robert C. Keller & Associates1988 - 2003
Trial Team LeaderDistrict Attorney's Office of Delaware County1979 - 1988
Law ClerkJoseph F. Battle, Esquire1977 - 1985
Association NamePosition NameDuration
Delaware County Bar AssociationMemberN/A
Council for Services of the AgedBoard MemberN/A
Pennsylvania Academy of BalletPresidentN/A
Casa Youth AdvocatesMember/SecretaryN/A
Delaware County Association of Criminal Defense LawyersPresidentN/A
United States Supreme CourtAffiliate MemberN/A
United States Tax CourtAffiliate MemberN/A
United States Court of Appeals for the Third CircuitAffiliate MemberN/A
United States District Court for the Eastern District of PennsylvaniaAffiliate MemberN/A
Association of Trial Lawyers of AmericaMemberN/A
American Bar AssociationMemberN/A
Pennsylvania Bar AssociationMemberN/A
Radnor Citizens Cable Communications CouncilMemberN/A
Legal Cases
Case NameOutcome
CW v JJThe juror deliberated for four hours and rendered a verdict of NOT GUILTY of all charges.
CW v BKAll charges dismissed after a full preliminary hearing.
CW v JSAll charges dismissed after a full preliminary hearing.
See all Legal Cases 
School NameMajorDegreeGraduated
Temple University - James E. Beasley School of LawLawJD - Juris Doctor1979
Temple UniversityN/ABA - Bachelor of Arts1976
Speaking Engagements
Conference NameTitleDate
Delaware County Bench/Bar Conf.Expert witness in coerced confession case2014
Criminal Law CLEThe New Expungement Law in Pa.2011