Future In-Laws

Shelby
My boyfriend and I are moving out of our apartment July first. We have been looking for a new place of over three months but nothing has worked out. His parents, who are also my future in-laws, have told us to move in with them until we find a place. My boyfriend works with his father and brother so it would be beyond convenient if we did. However, my M-I-L is extremely overbarring and controlling. My boyfriend knows I'm not 100% okay with this but if we don't find something they will be our final destination. My boyfriend knows why I am not looking forward to living with them and he completely agrees with me, he is just fixated on saving up a lot more money then we have already. I know it will only be for a short while, fingers crossed, but I am overly anxious about it. Any advice on dealing with my M-I-L and not overstepping the boundaries when discussing his family with my boyfriend?