You can choose your monthly payment as part of the loan application process. (studentloanhero.com)
If you indicate that you're separated, then as part of the loan application process, the mortgage lender will often want to see your separation agreement. (springfieldcollaborativedivorce.com)
The documentation process is rather rigorous, but you must understand that this is an important part of your loan application, so it has to be done well. (housing.com)