If I currently have ownershiper with two other people who are currently occupying the house am I supposed to pay them for rent or do they owe me rent

I I currently share ownership with my sibling and father who are currently living in the property. I I would now like my share so the property is to be sold however my father is requesting that I pay money towards the mortgage and bills since the date of death. Which I don't understand how that's even possible being that he lived in that property since date of death. He also had changed the locks and lock me out of the property for about 7 months now. What exactly are my rights and can be done