I had talked to the people at the mortgage company in the past and they said that even though we were one month behind, as long as we kept making the payments each month that we would be ok.
I can assure you, 1 payment behind you are not going to be "foreclosed". Lenders will discuss with you a 3 month plan to help assist with payments for you to catch up.
There are laws governing intent to foreclose and the first notice you receive is "Notice of Default". This informs you of a "default", i.e., missed payment(s), in reference to your agreement with the lender. This is issued from the lender and requires a signature. Read this carefully because it will state a specific time frame you must answer. If you cannot make the additional payment simply tell them with a possible number of months you may be able to do so. Return "certified", "return receipt requested".
An attorney representing the lender, if they are truly considering foreclosure, will send a letter of "Intent to Foreclose". This letter basically states make the payment(s) or you need to move immediately and your house is sold the first Tuesday the following month at auction.
If a representative from the lender is telling you they will foreclose talk to a manager. Always write the name(s) of everyone you talk to. Note what each told you as well. If you make any agreement you note what was discussed and tell them to send to you in writing. Do not feel like a "lost sole" with this, 42% of mortgage loans today are in "default".
Good Luck, stay positive with this.