Short of having him refinance on his own, are there any alternatives to get it off my credit report or convince a lender that it's not my house anymore so it shouldn't count against me?
No, because saying it "shouldn't count against you" is not true. If your husband can't pay the mortgage, you will be responsible, so it must count against you. But $9K is a pretty small amount - that would be like having a car loan. You may be able to qualify anyway.