what would you guys do ? Any advice is appreciated in advanced !!

My dad asked me if I can get an apartment under my name because he is legally not able to, he told me he never askes me for help & he really needs it cause he wants to move out from where he’s at cause he’s not happy & his so called gf that’s pregnant is coming to move in with him.

I told him I’ll think about it

Now I’m 20 & I live with my mom & stepdad, I have no plans on moving out soon but that doesn’t mean I would do it.

i always will need the option to get my own apartment if anything does happen ( living here has its perk but it’s also a negative environment but I can’t seem to leave cause I’m guilted into staying ) & I need to move out I want that option. I’ve been saving my money to buy a house or build a house, bc that’s always been my goal.

& if I do it, it’s giving away my option of renting my own apartment for the next year-5 years . I don’t want to do it majorly bc of that and also bc he does not care about me at all , he only calls me when he needs me.

My dad has never been there for me, mentally, physically, emotionally. Never even tried to be here for me or my sister. Left us when my sister was a baby & I was 2 years old. Thought that the “child support “ he gave was enough which was only $350 a month for two kids. Always puts his girlfriends & their kids above us & when they go out , he never invites us . Basically like if he doesn’t have any kids.

I’m just confused, my mom tells me she can’t tell me to do it bc if he messes up I’m able to blame her & she can’t tell me not to do it neither .

he told my mom that I said yes to helping him when I haven’t even spoke to him after that phone call. Me thinking about it does not mean yes !! Am I wrong for thinking of saying no ?