Fostering question? Living with a parent?

I'm an adult who lives in the house my grandmother left my father. I moved out a while ago but moved back in with my S/O because my father had been suffering depression at the time from the loss of my grandmother, and he needed help around the house. 
I've always wanted to help foster children. I have my own car, work two jobs and have all the needs to support a foster child. I'm legally able to adopt, so would fostering be a problem if my father lives with me? 
There's a lot of spare rooms. My S/O works when I'm at home, and vice versa (my other job is a work from home) so there will always be someone there for the child.