No worries. You can sell a property with a mortgage on it. Even if you are behind in payments, the sale can go through. It depends on how much your loan balance is, and if your investor offer will be enough to cover what you owe. At closing, you will have to pay off the deferred payments and standing loan balance to your bank.
If the offer is not enough to satisfy your loan, then you may have to consider other selling and financing options. If you request an offer from us, we can discuss your situation and options.