Lenny Hochstein's girlfriend Katharina Mazepa is waging serious claims at his estranged wife, Real Housewives of Miami star Lisa Hochstein. 

As part of a newly filed restraining order against Lisa—more specifically, a temporary injunction for protection against stalking violence—Katharina alleges that for the duration of her and Lenny's relationship—which began in May of this year, around the same time he filed for divorce—Lisa has been engaged in a campaign of "harassment, cyberstalking, bullying and defamation."