[greglepore]

Depends on how its titled. If its "me and my wife as tenants by the entireties" in most states nothing unless the judgement is against both of you. If in some other form of joint ownership, your half is exposed.
Practical answer, unless there's millions involved, atty's rarely go thru the hassle of going after personal assets. More trouble than reward unless your name is Cheney or Trump.
But nothing is ever 100% untouchable unless in a spendthrift trust, and even then distributions may be. You buy insurance to hedge these bets