I am planning on buying out XH for the family home, which is in his name and still has 15 years left on the mortgage. However over the years he has borrowed a large amount on secured loans, for credit cards and other spending, increasing his monthly mortgage payment drastically. He agrees that the debts are solely his. This means that if I were to buy him out my mortgage payments would be lower isn't it? How do I find out what the numbers are on this? I know very little about mortgages and I don't know the terminology for the numbers I have to ask for. I've been doing some googling to learn more but haven't been able to find this out. Any help appreciated. TIA