If you've both signed personally, you are both liable.
However you do need to find out where he lives, so any chasing of money can be directed to him. Otherwise, If he's vanished. The creditors will pick on the easy target first. "You".
What sort of business is it? what sums are we talking? Is it in the UK?
Have helped with this sort of thing in the past. So don't mind scanning it over for you.
Let me know if i can be of assistance.
