Philadelphia Lawyer is a term to describe a lawyer

Lawyer

A lawyer, according to Black's Law Dictionary, is "a person learned in the law; as an attorney, counsel or solicitor; a person who is practicing law." Law is the system of rules of conduct established by the sovereign government of a society to correct wrongs, maintain the stability of political...

 who knows the most detailed and minute points of law or is an exceptionally competent lawyer. Its first usage dates back to 1788.
Philadelphia Lawyer is a term to describe a lawyer

Lawyer

A lawyer, according to Black's Law Dictionary, is "a person learned in the law; as an attorney, counsel or solicitor; a person who is practicing law." Law is the system of rules of conduct established by the sovereign government of a society to correct wrongs, maintain the stability of political...

 who knows the most detailed and minute points of law or is an exceptionally competent lawyer. Its first usage dates back to 1788.
Philadelphia Lawyer is a term to describe a lawyer

Lawyer

A lawyer, according to Black's Law Dictionary, is "a person learned in the law; as an attorney, counsel or solicitor; a person who is practicing law." Law is the system of rules of conduct established by the sovereign government of a society to correct wrongs, maintain the stability of political...

 who knows the most detailed and minute points of law or is an exceptionally competent lawyer. Its first usage dates back to 1788.Philadelphia lawyer. Definition at Merriam-Webster

Philadelphia

Philadelphia, Pennsylvania

Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States,...

-based Colonial America

Colonial America

The colonial history of the United States covers the history from the start of European settlement and especially the history of the thirteen colonies of Britain until they declared independence in 1776. In the late 16th century, England, France, Spain and the Netherlands launched major...

n lawyer Andrew Hamilton

Andrew Hamilton (lawyer)

Andrew Hamilton was a Scottish lawyer in Colonial America, best known for his legal victory on behalf of printer and newspaper publisher John Peter Zenger. This 1735 decision helped to establish that truth is a defense to an accusation of libel...

, a lawyer best known for his legal victory on behalf of printer and newspaper publisher John Peter Zenger

John Peter Zenger

John Peter Zenger was a German-American printer, publisher, editor, and journalist in New York City. He was a defendant in a landmark legal case in American jurisprudence that determined that truth was a defense against charges of libel and "laid the foundation for American press freedom."-...

, is believed to have inspired the "Philadelphia lawyer" term. This 1735 decision helped to establish that truth is a defense to an accusation of libel.