Yeah say you're currently separated. They usually call to interview you so you can explain that he's still covering the rent but that's all.
I think, at least in my state, they’d require that he be paying child support if y’all are split up tho just a heads up
If you live together put that you live together but are not together or sharing bills. You can say you pay him (your land lord) x wmount of rent
If anyone were ever to report you they will literally follow your social media, in person etc to look for clues that he resides there before charging you. Happened to someone I know not worth it imo
u could say he’s not living there and that you receive help. have ur mom write a letter.