Can I ask for alimony and what are my options if he divorces me and leaves me homeless?

My husband has moved out, and stopped paying the mortgage. He is not providing support to the household expenses. He has a lawyer, I cannot afford one, as I am a part time minimum wage worker. He is selling the house and I will have to move out. I do not have the funds to rent anywhere, and any savings have been put in his name. I do not know if he has filed separation papers or divorce papers. I do not know if I can ask for alimony. Also, he has been going in the house without my consent or knowledge and removing items other than his personal belongings. Can he do that legally? The car I currently drive is in his name, can he remove that without prior notice or any court documentation?