Mil rant

Okay so I want helpful information and not the whole you can't live with your mil crap. So my husband and I and my mother in law all live together. My husband and i were dating and they decided to get the place we live now because we would need more room and then he proposed to me and we all three moved in together and we have been living together for a year and half. Before I moved in my mil took on two kids that was suppose to be temporary. Anyways due to their family memebers shes under a lot of stress along with health issues. Tonight I asked my husband to take two plants to her room where all her other plants are so I could start leaving my puppy out more and not have to worry about her chewing the plants and eating them. That caused my mil to fly off the wall and take all her furniture out of one of our living rooms and all the pictures and knack nacks all the while screaming. My husband and I don't know whether to sell this place and we all move out on our own or to work it out with her and tell her we aren't going to put up with it anymore. Its equal her house and our house.