ambulance chaser

1. A lawyer who obtains clients by persuading accident victims to sue for damages.
2. A lawyer avid for clients.

noun

A person who practices law: attorney, counsel, counselor, lawyer. Chiefly British barrister. See law.

An attorney who seeks to profit from someone's injury or accident; also, an inferior lawyer. For example, Karen refused to join any law firm that included ambulance chasers. The practice of suing for damages on behalf of the injured person in exchange for a contingency fee--usually a large percentage of the amount so won--may be older, but this derogatory term began to be used for lawyers who actively sought out individuals injured in accidents who required an ambulance. [Slang; late 1800s]

A colloquial phrase that is used derisively for a person who is hired by an attorney to seek out negligence cases at the scenes of accidents or in hospitals where injured parties are treated, in exchange for a percentage of the damages that will be recovered in the case.

Also used to describe attorneys who, upon learning of a personal injury that might have been caused by the negligence or the wrongful act of another, immediately contact the victim for consent to represent him or her in a lawsuit in exchange for a contingent fee, a percentage of the judgment recovered.

The noun has one meaning:

Meaning #1: a lawyer who incites accident victims to sue