I just married with my husband 3 month and after we don't have a room at my husband house. His sister doesn't let the master room for my husband, and her sons was sleeping with my husband for few years because her husband ran away from her so she have stay at his house. But my husband married me and she doesn't want to let go of the room. That's not good for my marriage. I was very angry. She chased her brother out and asked me and my husband to move out and go rent a house. I asked him go stay with my parents. I pity my husband on it got house like no house. He paid all the house loan and he gets nothing, I don't know what to do to help him.
if you have nothing in writing, then can your husband prove that he made all those payments.
if there is a written agreement or proof, then you sit down with her and point out that you cannot be evicted...work out a deal.
but, if there is nothing in writing......then, you have no choice but to move and get on with your lives...and learn this lesson well...ALWAYS GET IT IN WRITING AND SIGNED
What discussions about living arrangements did you have with your husband before your marriage? Did you assume your marriage would automatically make you "mistress" of the well established family home and your SIL would do what you told her? Life doesn't usually work that way except in romance novels. When my mother married my father and moved into the house my father purchased 7 years before for his family (parents and siblings) to live in, they shared an upstairs bedroom while my mother's FIL remained in the larger downstairs bedroom he had shared with his wife before her death less than a year before. The crib for my parent's first child was placed in their upstairs bedroom too. When my father's youngest sibling got a job in town, she got an apartment for herself and her father so my parents finally got that larger downstairs bedroom.
It may be a while before long kept living arrangements are changed. You need to talk with your husband and let him talk to his sister. Pushing yourself into the discussion between siblings will likely only make changes more difficult to make, potentially creating life long (or at least marriage long) hard feelings and may end up with the situation actually taking longer to resolve. Your SIL's suggestion you and your husband move out (temporarily) may actually be a good one, particularly if you and SIL are sniping at each other. A little distance many allow for easier discussions between the siblings and a faster resolution.
A few years ago, your SIL's husband abandoned her and she turned to her brother for help. She moved with her sons into her brother's house, where they were all overcrowded but managing.
Three months ago, you married your husband and moved into the same house where they were all living, along with another brother (where did he come from? Did he live there too before she moved in?). This house still belongs to your husband.
The brother moved out and has gone to live somewhere else.
Your SIL thinks that your husband and you should go and live somewhere else too, so that you have privacy as a married couple and she and her sons can continue to live in the family home.
As an alternative, she suggests that you and your husband can move in with your parents.
Hmm. And what about the fact that the house belongs to your husband? Is she going to buy the house from him? Will she pay him rent?
Why can't your husband work this problem out with his sister? It shouldn't really be up to you.