My mom aged 60, uneducated, unemployed, made a surety signature for?
Yes , She being guarantor is liable to pay the dues. Bank can recover the dues either from borrower or from guarantor. If she is illeterate and can't sign or language of the guarantee form is neither known to her not explained to her, by anyone, then she can take this plea, for that, you have to consult a lawyer. Being unemployed, doesn't make any change in her obligation, to pay the dues.