I would move. I would rent my own apartment and move to it. Just leaving does not negate property rights; both of you would still own the house, no problem. I would take anything of your own that you value and move it out. I would tell the police of your husband's drug activities and ask them to "watch" the house. Eventually the house will be awarded to one or another and/or be sold and the proceeds split. I have known guys who have "trashed" the house because their wife left but that would hurt him. I would tell your parents not to give him money and to be on the lookout for negative behavior from him, etc.
http://robinroshkind.wordpress.com/t...-of-the-house/
If he behaves negatively in any way; a restraining order would not be hard to get? You aren't a slave to his life/person/lifestyle/timeframe. Start your own the way you want.