I am assuming that you already have a Realtor. If you have signed off on an Agreement of Sale and the buyer has a commitment and there are conditions on it, then the buyer can't obtain a mortgage until all of those conditions are removed by the bank. The buyer needs to provide the bank with whatever proof they require in order to remove those conditions.
A commitment doesn't mean anything until all of those conditions are removed.
Did your Realtor put into your listing on the MLS that your home was being sold in "as is" condition?
The buyers are right in saying that they do have a contract with you but there are dates contained within that contract and if those dates have passed, you may be able to end it.
For instance, did they have a home inspection? If so, they only have a few days to make a decision as to whether they want to continue on with the purchase. They should have given your Realtor a report and an Addendum telling you what issues they want fixed/repaired or receive a credit for. Then you have a certain amount of time to reply and then it goes back to the buyer for a final decision. Has that time passed? Did you reply back saying you weren't doing anything?
Talk with your Realtor and ask her about the Agreement of Sale. He/she should have explained all of this with you prior to you signing the Agreement of Sale.
If your Realtor tells you that the buyer is in default because they didn't comply with a date contained within the Agreement of Sale, then you should be able to release the buyer.
Did the buyer's give you the mortgage commitment by the date contained within the Agreement of Sale? If they didn't, you can get out of the AOS.
Sit with your Realtor or talk with the Realtor's Broker.
I am sorry that you are having these issues. It must be stressful.
Remember, you can always consult with an attorney.
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