Need to move into owned house
My wife own a house with her sister and her mom. We are going to foreclose on our house at the end of July and we are going to have to move into the house that her sister currently lives in. I was wonderiong if she can keep us from moving in and keep us away from the house? As it stands right now we are not allowed to go over there. The sheriff was telling us that the only way that we could move in is if we get her permission or if a judge rules that we can live there. Please let me know how to pursue this. Time is short.