You are an innocent spouse... so your assets or share of assets should not be used to satisfy your ex-husband's obligations.  However, this is a defense to seizure that you need to assert.  If you do not assert it, then you run the risk of your share being sold or seized to satisfy his obligations.  To protect your share of any assets, you really need to hire an attorney to at least send a demand letter on your behalf advising the justice department of your defense.  They may also be able to negotiate the sale to help further protect your assets from any furthe misunderstandings.