Dear Home Buyer,
Your Attorney is the best person to direct you.
To my knowledge, If you have signed the Middlesex MLS standard contract of sale,part of item no. 10b-Responsibilities to cure States clearly,
"If Seller shall fail to agree to cure or correct such defects within said seven(7) calendar days period, or If any part of the dwelling is found to be located within a flood hazard area, or If the environmental condition at the property (other than radon) is incurable and is of such significance as to unreasonably endanger the health of the Buyer, the Buyer shall then have the right to void this contract by notifying the Seller in writing within Seven (7) calendar days thereafter. If Buyer shall fail to void this contract within these seven(7) calendar day period, the Buyer shall have waived his right to cancel this contract and this contract shall remain in full force, and Seller shall be under no obligation to correct or cure any of the defects set forth in the inspections"
I hope this helps!!