The ex-husband has a debt of 70,000, 1/3 of it is collected for a child with a disability of 1 A, a 7-year-old son, nothing has been officially registered on him, he has a house that is decorated as a gift, he also has two minor children from his second marriage, he worked in the military commissariat, resigned, is not working now, pays 2,300 per month as a salary in the city. I want to collect a debt, what can I do?