Your lender may offer you a few options if you miss a payment and want to avoid foreclosure:

Repayment plan
For a short-term financial setback (expensive car repairs, a medical emergency), your lender may provide some breathing room by agreeing to let you pay off your missed payment in two installments over the next two months.

Loan modification
Lenders can adjust the terms of your loan most often by lengthening the amortization schedule, lowering the interest rate or rolling the delinquent amount into the loan and re-amortizing the new balance to help you bring the loan current.

Short sale
The lender allows you to sell the house for less than the outstanding loan amount, takes the proceeds and forgives any remaining debt.

Short refinance
The lender forgives some of your debt and refinances the rest into a new loan.

Refinance with a "hard money" loan
You won't like the high rates and fees of a hard money loan, one from a private lender, but it may buy you time to sell your home and avoid foreclosure.