litigious

adjective | \ li-ˈti-jəs \ | li·ti·gious

1. : prone to engage in lawsuits or legal maneuvers especially to an excessive degree a litigious pro se prisoner … filed fifty-one cases —In re Oliver, 682 F.2d 443 (1982)

2. : subject to litigation acquired only a possible litigious claim —Wells v. Joseph, 95 So. 2d 843 (1957)

3. : of, relating to, or marked by litigation