First, why is language an issue? By "borrower" I take it you mean the primary signer of the loan. Most all developed countries have contracts of some sort and every good parent tells their kids (in the applicable language) "NEVER SIGN IT UNLESS YOU READ IT FIRST!" So, the question then becomes HOW did the borrower deceive the non-English speaking co-signer?
In any case, the answer is generally NO. The lender/bank has no obligation to ensure that the signing parties have read and understand the contract. Most contracts stipulate "I have read and understand this agreement which I am signing", so they no reason to believe that some hanky-panky is involved.
The duped co-signer can, however, file a lawsuit (or depending on the type of deceit and monies involved possibly a criminal charge) against the borrower in an attempt to recoup losses or to force the borrower to refinance the loan in their name only which would then release the cobuyer.
But using the old "I did not understand the language" just doesn't flush much anymore because it is a world-wide fact that most people in other countries learn English at an early age. You'd be shocked at how many English-speaking people try to pull the same "I had no idea what I was signing for" stunt. Right. Well, then I guess this is going to be a very expensive "Mama told me so!"Never sign it if you haven't or cannot read it. And NEVER co-sign for ANYONE!
AnswerThere is a legal defense in such issues that is somewhat sarcastically referred to as "Heisenburg's Uncertainty Principal of the Law". The fact that a person signs numerous forms does not "ipso facto" mean he or she is bound by what was purportedly signed. This gives the debtor/consumer legal grounds to file litigation if necessary to be relieved of the responsibility of the debt. There must however, be clear and substantiated proof that the consumer was pressured into signing or that they did not in some manner understand what was taking place, such as a person having limited communication skills for whatever reason.
The duration of Deceived is 1.73 hours.
Deceived was created on 1991-09-27.
A Nation Deceived was created in 2004.
The Less Deceived was created in 1955.
I've been deceived!
The Deceived - 2014 was released on: USA: 2014
You mean apart from deceived, I suppose. Fooled or conned, perhaps.
The duration of Deceived Slumming Party is 420.0 seconds.
The word deceived is a verb. It is the past tense of the verb deceive.
Deceived Slumming Party was created on 1908-07-31.
Deceived - 2011 was released on: USA: 17 September 2011
Deceived - 2013 was released on: USA: 25 March 2013