You already received a lot of good, solid information from the other responses. No matter what you read in the national "headlines" homes are selling all around you in our area. Most owners can tell me why they think their house didn't sell. I bet you are no different. I'm sure you have thoughts on why your house didn't sell, while others have. Get yourself a good Realtor, who will provide you with documented pricing recommendations, (follow their advice) and who is willing to truly market your home to get it SOLD!
I'm not a big fan of lease options because the only one who really benefits is the buyer/tenant. If the home goes up in value, of course the tenant is going to buy it, and if the value goes down, there are going to simply walk away.
Given just what you mention in your post you have three options:
1. Rent it out
2. Sell it at a price that will sell (that means how much you owe, how much you need to net, or how much you paid do not matter)
3. Don't move.
If you'd like a top Realtor whom you can interview and determine your options and the pros and cons of each, let me know and i can arrange it.
in addition to the info that is given below, consider whether you want the bother and responsibility of long distance ownership. If you reduce it or offer seller assistance, does it bring it into the range that is selling?
What if the prospective purchaser defaults (it CAN and DOES happen):are you prepared to return and re-market the property? Can you carry both your new home mortgage and this existing one, and any utility bills if that happens?
If you have equity in the property, it may be a better option to sell now and move on.
Something to think about, in any case.
Best wishes as you make a tough decision.
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Even if you find a buyer who will want to buy your house by owner, it doesn't mean that they'll get a mortgage for the house. I would suggest reading and learning more on how lease-options work.
Hope this helps.