I'm not entirely sure of all your details...I was the co signer on the house I shared with my ex when we were still married, when we created the separation agreement (with a lawyer) I agreed to a quit claim which took me off as co owner and my ex refinanced the house into his name.

Were you ever on the mortgage? If not, I don't see how you would owe anything on the house nor that you would have had to sign anything for your stbx to have sold it.

My understanding...marital debt/assets are those undertaken after the marriage..anything before that belongs to the person coming into the marriage, as well as after the divorce.

My state is an equitable distribution state. no 50/50 although we did separate the debt that way. I get 50% of the retired military pay and then alimony (ex makes 6 figures on top of retired pay) the alimony was based on a percentage rule that was created in a larger city in my state, but I only asked for roughly a third of that amount. wasn't trying to be mean or greedy, ya know?

Hope this helps some. Divorce is expensive if it's contested, I'll keep my fingers crossed for you.