sharp practice

Definition from Nolo’s Plain-English Law Dictionary

Questionable or unethical actions, especially by a lawyer. Sharp practice may include making misleading statements or threats, ignoring agreements, improperly using process, or employing other tricky and/or dishonorable means barely within the law. A consistent pattern of sharp practice may lead to discipline by a court or state bar association.

Definition provided by Nolo’s Plain-English Law Dictionary.