Hi pbaker,
I've moved your post over to a more appropriate forum.
Sorry to hear about your situation.
As Rehab says, it was your loan itself that doubled the payment, and a new servicing company would not have mattered. Lots of people are in the same situation about now where their teaser rate has expired and the real loan payments are kicking in. Or, you had an option ARM that you were making minimum payments and you've now hit your cap.
If you have not already, you should call your mortgage company tonight or tomorrow and have a talk with them about working something out. Maybe they can offer you some sort of workout program. This is your best bet for staying in your house. Do not wait, please do this ASAP.
You should think very seriously about selling your house outright. If you actually have some equity in the house, that is, its worth more than you owe the bank, you may be able to sell it through a realtor. If you don't have any equity, you may be able to work with an investor to do a " short sale" and get the bank to accept less than you own for the house. If you bank has filed a " notice of default" , or whatever its called in your area, you've probably had numerous phone calls, letters, or people knocking on your door already.
If you do try a sale leaseback like you describe, I'd recommend you do it with someone you don't care to stay friends with. Because these often go badly. You friend will either have to take over your mortgage or get a new mortgage themselves. They will have to charge you big enough rent to cover their payments and make a profit for themselves. If there's no profit for them, why would they invest the time, credit and money to do this? Its very likely your rent will be higher than you're paying now for the mortgage. If you're having trouble with the current mortgage, you may well have trouble with new rent. If you miss a rent payment, your friend will be in a position of making the mortgage payment on his own. If he has to evict you to try to get someone else to make up part of his losses, your friendship will really go south.
If your financial situation has improved to the point where you can handle the current payments, and some extra, you may well be able to work something out with the bank. Getting their payments, plus some extra to pay off the back payments and charges, is by far the best solution for the bank. If you're not in a position to do that you're probably going to have a hard time making your friend whole. In that case, selling and moving to something cheaper will be much better for you.
Jon