Hi Kool,
You have hit a number of the items you'll have to pay when you sell. You'll also have to buy title insurance. These days, its very common for sellers to have to pay a portion of the buyers closing costs. While this doesn't directly affect the price you get, it does affect the buyers net cost and your net proceeds. If this is common in your area, you will be effectively pricing your house higher if you don't do this too. Your agent probably has a title company she will use for this transaction. Ask her to have them work up a preliminary HUD-1. That's the sheet you get at closing with all the details of the transaction. You should get this a few days before you close anyway, but it may help you out to have it now. That should be very close to what you would actually get.
Again, what you owe just doesn't matter when setting the price. I know that's weighing on your mind very heavily, but set it aside and take a hard look at the price. If houses are moving in your area, make yours the best deal in your neighborhood, and it should move quickly. If sales are really slow, you may have to make it a great deal to get it to move. But you MUST forget about what you owe when setting the price.
Then, see where that leaves you for net proceeds after the close. The three lenders will not let you close if you don't pay them off. So, there's really no question of them coming after you later. They will block the sale. Under normal circumstances in a situation like this you would have to bring money to the closing to make up the gap. Is that possible? Meaning, do you have or can you get the money to make this up? If you can, even if you have to borrow it, that will give you the best outcome. If not, at least one of the lenders is going to have to be convinced that you can't pay the money and have no chance of being able to pay them the money in the future. That's the discussion an investor would have with the lenders to negotiate the short sale.
Once you have a realistic price and your net proceeds, you'll know where you stand as far as paying off the loans. Hopefully, its just the third where you're going to come up short. Then, I'd call them up and say: " I'm trying to sell this house. When I do, I expect to be xxx short of being able to pay you off. I have no assets and no way get the money to make this up. What can we do?" Honestly, I have no idea how this conversation will go. If you owe them 50K and you're going to pay back 5K, it may go nowhere. If we're talking about 10K short out of 50K, it may go better. Maybe they will do a loan with you to pay off the shortage. Maybe they will get very nervous and start the foreclosure. But, it sounds like you're about to this point anyway.
Have you been getting showings? What has the feedback been? Do you have the place all cleaned up, decluttered, and painted and in move-in condition?
Jon