You can live at the same address as your cosigner, as long as they have a credit score of more than 750 and a good history of paying their bills on time. Of course, they must be able to make the monthly payments if you don't. You should also remember that cosigners who own their own home (not tenants) are much more likely to be accepted.
However, if you and your cosigner have shared finance and income, we need to be sure that this loan wouldn't put either of you under any financial strain when making repayments on the loan, and make sure that neither of you have had trouble paying bills in the past.
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