The label for Box 7 says, "If address of property securing mortgage is the same as PAYER’S/BORROWER’S address, check the box, or enter the address or description in box 8."  

Therefore, if there is no address in Box 8 - or the same address appears in Box 8 as for you, the PAYER/BORROWER - you may consider Box 7 to be checked.

If there is a different address in Box 8, then Box 7 is considered not checked.