My Mother-in-Law received a 1099c for cancelled debt, she gets only social security and usually does not have to file taxes. Do I use her social security as income along with the amount from the 1099c when I file for her?

my daughter is not married to the father of her baby,she has full coustdy of the baby, can he claim her on his taxes ? My daughter wants to claim the baby, but the x- boyfreind has already done his.