Because you kept the money separate legally he will have no right to the items purchased with the inheratance. Keep in mind just because he has no legal right to it does not mean he will not tell you he does, or he will fight you during the divorce for it, but if you get into a divorce trial he has no legal right to the money or items purchased with the money and no judge will allow it to be granted to him.
If he did work during this marriage try to get proof that he did and proof that he is capable of supporting himself, just in case he tries to state otherwise. Most states will not grant spousal support for a marriage less than 10 years, but this also does not mean he will not fight you for it.
He will be entitiled to half of the increase of a 401K fund, if you have this, and half of the assets aquired during the marriage, not purchased with the inheratance (no matter if you purchased it or he did), he will also get to assume half the debt aquired during the marriage, if any.

I do have proof that he had an income. He does small construction projects. I have copies of the bid sheets, which he does not know about. He is also trying to collect disability so they pick up the child support bill. He did sign up for public assistance and I am thinking I should call because he has not changed his address. I dont want his irresponsibility to come back on me. I do not have a 401k. He told public assistance he had no income only to have a medical card to go to doctors for bipolar and depression