Good morning. I certainly understand the situation and your concern. If your husband decided to co-sign and help a guy out, that is at his discretion ( and I am not sure why he would do this), so it is not a situation where you can now step in and undo what he did and agreed to, with this guy and the third party, who lent the money. However, you personally would not be liable and the MN Statute is in place, to personally protect you. I have provided it below. However, if the guy fails to pay on the loan and your husband gets sued, there could be a judgment against him and they could go after his income or assets which are under his name. I completely understand and see why you are mad( as I would also, especially if he did not benefit from doing this) but it was his decision and what was agreed with him and the other parties, so you could not just step in and undo this.
519.05 LIABILITY OF HUSBAND AND WIFE.
(a) A spouse is not liable to a creditor for any debts of the other spouse. Where husband and wife are living together, they shall be jointly and severally liable for necessary medical services that have been furnished to either spouse, including any claims arising under section 246.53, 256B.15, 256D.16, or 261.04, and necessary household articles and supplies furnished to and used by the family. Notwithstanding this paragraph, in a proceeding under chapter*****may apportion such debt between the spouses.
(b) Either spouse may close a credit card account or other unsecured consumer line of credit on which both spouses are contractually liable, by giving written notice to the creditor.