Get Consultation from a lawyer by walk in to their office.

Ask the lawyer to add a clause into the contract, whoever unable to service it loan due to financial difficulty within time frame. The person who at fault or The wrong doer has to compensate liquidated Ascertained Damages. (LAD)

http://www.faircontracts.org/contract-prov...-damages-clause

SNP is a contract where it will stipulate the payment terms and bound both of you honour the contract.

SNP is sort like insurance to safe guard.