You got 2 ways of get rid of him have to be in war for both of them. in both cases u have to steal the wallet then u got
1. via hacker, u keep the wallet and u agree to pay him 4k during dinner or when ever they want to sent u to boot camp.
wait till next week, talk with Kira she will suggest the hacker, this way u can make him your puppy or get rid of him via mobsters.
2. u steal wallet, and make arrangement with him to leave sisters and aunt alone. wait till Monday talk with kira she will suggest kate mom, after that u make porn with Alice more fun and he becomes sex slave (this one takes quite few weeks to finish)
Also after no matter which way u decide i think u get Anti potency pills so he doesn't touch anything while hes still there.