Help removing priv-app admistative apks

Hello, So Im clueless and truly need some help. My ex bf was using my cell and has put some apks on it to where he has hidden things. He is now gone and I need to remove the blacklist and his admistrative id. Please guide me. He has finger print and face rec. On but not turned on through google. I cant access his account and he is locked up in jail and still wont give me the info. He has it where I cant go to certain sites and etc. Like I said, Im clueless and truly need a dummy guide. I know he was using firebase. Please get with me