What do you mean a grace period? Once you close, it's done. That's usually some time after the initial offer though, weeks to even around 2 months.

what do you mean a grace period. do you mean you closed on the house but then you changed your mind? If this is the case, the answer is NO!

The only "grace" period you have is when you refinance.

Depends on State law but generally there is an agreed upon date in the Sales Agreement. Technically you can write in a grace period so long as the buyer/seller both agree to it.

nope