Ex-Wife Created Debt During Couple's Separation

by Carol
(round rock, tx)

My son's now exwife created a debt in his name without his knowledge during their separation. They have been separated since 2005 and living in different cities for the past 4 years, divorced as of 2011. In preparing to purchase a home, he has learned that there is a judgement against him from last year that he had no knowledge of. Is there any way that he would not be held responsible for that debt?