Co-signing mortgages or other loans is a common practice for parents trying to help
their children establish a good credit history, relatives or even friends who want
to lend (no pun intended) a hand.
While it won't keep you from getting a mortgage, if you've co-signed
another loan, it counts as debt and you should include it on your loan application.
It'll be factored into your total monthly payments when considering how much
of a mortgage you can qualify for.
Talk to an M&T loan expert for more information.