Home sellers do not have many options when it comes to canceling an escrow.
For example, you can't cancel an existing escrow if you find another buyer willing to pay more money for your home or if you simply change your mind about selling.
Once you are under contract with a buyer, you are basically stuck.
However, you can get out of escrow if the buyer refuses to perform.
So if the buyer refuses to remove their inspection contingency, give them the notice to perform.
If they still don't remove that contingency, then you have the right to cancel the deal.