How do I remove myself from being in between my husband and mother in law?

We relocated and moved in with my in laws about 2 and a half years ago. I did it because my husband is an only child and I felt it was necessary. Now I regret my decision. I left behind my children and grandchildren to do this. When we came here I thought living with them was only temporary and that eventually we would get our own place to live but that has not happen. Mostly because of financial reasons. I feel like I am always put in between my husband and his mother. They are very much alike! They both need to have the final word and neither back down from an argument. My father in law is here as well but he says nothing!! How do I stop this madness!! We both work part time but when we are home all we do is hibernate to our bedroom for privacy...The in laws don't do much either except stay in their room all day. Please help!