Co-Signer Did Not Approve/Sign Loan Mods House Now In Foreclosure

[Ken Quella]

Hello,

Have a unique situation here.  Lets say a father co-signed on a note 12 or so years ago with his daughter and son-in-law.  Since then the daughter/son-in-law have completed four loan modifications over the years due to hardships.  All of these were done without the signature or consent of the father(co-signer).  The house is now being foreclosed on and the father is listed as a defendant on the docket and has been served notice.  The father is NOT on the title for the home (this may be why the bank never asked for his signature on the modifications???).  I'm curious if the father is still liable for the note seeing as he never agreed to any change in the terms of the loan and all these mods were done without his knowledge or consent.  Personally I feel like the bank should be required to have the co-signer sign off on all mods but then again thats why i'm here double checking :(

Thanks everyone.