I claim my father-in-law as a dependent on my taxes. He is unemployed, has no income of any sorts and I financially support him 100%. Recently, his ex-wife has filed for back child-support in Oklahoma. He was mailed paperwork stating that he owes over $40,000 to the state of Oklahoma however he does not have any income to pay it. If I claim him as a dependant can Oklahoma take my tax return to pay his debt?