[NC] Unauthorized Occupant Removal Advice

Hello everyone,

My step-daughter (F,20) is currently living in Charlotte with her roommate (F,20) of almost two years who has been allowing her boyfriend (M, 21) to live rent free for the past year. Step-Daughter (SD) never agreed to living with the Roommate's (RM) Boyfriend (BF) and he is not listed as an occupant on the lease agreement. Recently BF has been making SD feel uncomfortable after making some inappropriate comments about her body and she wants to move out. Initially they agreed to allow BF to take over SD's portion of the lease until the lease expires in July but now after arranging new accommodations they are refusing to let SD move out. In order to resolve this situation we want to either make sure that the BF is no longer allowed in the apartment or convince the RM and BF to assume the lease for the next 4 months and let SD move out.

Right now our plan is to start building a paper trail showing he's been living in the apartment as an unauthorized occupant for the past year. SD already has screenshots of text conversations where RM says that BF "spends every night with me. in my room." Dating from several months ago and again from a few days ago. We are going to the leasing office tomorrow to request the apartment complex formally serve written notice to BF to vacate the residence. Is there any other advice or recommendations you have for us? Thanks for the help!