Co-Signer vs Co-Borrower | What's the difference? 

Great to the point and very informative video. Thank you.

If I add someone as a cosigner to my checking account, can the cosigner's past debtors come after me for their debts?

Who''s credit score do they use when you have a co-signer. For example if I had a 620 score and my cosinger had a 720 credit score.

Me and my brother are co borrowers to our father on mortgage application. My problem is i have bad bank statements and have gambling transactions. Is there a chance we will get decline? My father is going to pay the downpayment

If my ex-boy friend does not want to continue as co-signer, what do i need to do?

I think you're missing the most important thing and your conclusions are also wrong because of it. As an insolvency professional, you probably can explain it much better than anybody else, but you don't do it... The trick is...guarantor is not exactly liable to pay entire mortgage amount...instead, guarantor is liable to make payments that main borrower missed for his debt servicing. The key point here, the debt for the main borrower MUST exist. If main borrower files a bankruptcy and debt no longer exists, guarantor has no obligations anymore, because all obligations of the guarantor were tied to the debt.