A guarantor is someone agrees to be responsible for someone else’s liabilities if in case that person fails to fulfill them. In case of loan transactions the guarantors are taken as co-signor of the contract and in the absence of the original borrower they are held responsible for the fulfillment of the obligations. In case of an insurance policy the guarantors have more or less same responsibilities. It’s just that this time they insurance guarantor. The insurance guarantor is made responsible for all those obligations which the original obligator fails to fulfill, such as co-pays. An insurance guarantor, just as a loan guarantor, is the person who will be responsible for all the obligations if the original obligator fails to fulfill them and also are expected to perform all the duties regarding the insurance which the obligator was to perform, in the absence.