My Dad Keeps Coming Home In The Middle Of The Night Waking My Mom Up And Bothering Her

Hello everyone so I 19f live with my mom 53 and sister 16 my parents got a divorce in 2023 but started dating after the divorce never telling anyone they got a divorce they broke up in September of 2024 bc my mom found out after there divorce was finalized my dad got remarried so basically he divorced my mom and made her the other woman. My mom told us and things have been crazy since then. My dads always been an ahole we haven’t gotten along for a while and tbh no one cares they divorced we’ve been rooting for that but he’s been off his rocker since all or this came out. By there divorce decree they will live together in our house until my sister graduates where in which my mom will buy my dads part of the house from him and they will split the furniture 50/50 until then my dad will pay all the bills in the house. My dad’s been hounding my mom to buy the house from him now. He had been coming home when I’m at work trying to fight with her (it’s really just him yelling at her and getting in her face) over her buying the house and telling us what he did. He would spend some nights here and other nights at his apartment with his wife making it very awkward and making me not even want to go to work bc every time I leave my sister txt me saying he came home and started yelling at mom. The time he would stay the night he would try to have my mom have sex with him and he would come in the middle of the night and try laying down with her she had to start locking her door and he then grabbed his drill and told her if she locks the door again he’s drilling the handle out. All of this was going on until one day he was here but I needed to take my sister somewhere me and her were gone an hour or two and we come back to him yelling at my mom in her room and my mom telling him to leave her alone. He stormed out when he realized me and my sister was there come to find out he was once again trying to make my mom buy the house from him and she said she will buy it when she gets the money and tried to excuse herself to the bathroom (she actually had to go) when she closed the bathroom door my dad broke the door open. Since then he also texted our group chat trying to place all the blame on my mom atp I felt it was time for me to finally say something and I gave him a reality check which led to him disowning me. He stopped coming to the house from then at least while we were home. It had been over a month since I saw him until a week or 2 ago where I was on the phone with my brother at 12 am and I heard the garage come up this man came in the house at 12 am and woke my mom up to talk about something unimportant he then watched he lay there for a while got up got himself a blanket and pillow and slept in the bed… wtf. Then a few days ago he came at 10pm woke my mom up again I came in there bc I slipped in the shower and needed a bandaid and as soon as I came in there he left. And now tonight at 12 am he came in went straight to my mom’s room hopped on her bed and went to sleep my mom had to get up and leave her room and sleep on the couch. Is there anything we can do about this can my mom maybe seek a cease and desist Even though it’s technically his house to? My mom doesn’t want even sleep in her bed anymore she sleeps on a pallet on the floor.He has an apartment with his wife so idk why he even keeps coming. I know this sounds unreal but it’s true and I can prove to any moderators that it is so if yall have any advise it would be helpful we live in Texas.