Put your house for sale and see what is the response, how many inquires you get, how many offers. You have to have your house clean, organized and ready for showing.If you hire a knowledgeable Real Estate agent, they can assist you and they will get you the best price for your house.
There are many things you can do to find out if there are buyers out there who are interested in buying your property, for example, you can try to put a for sale sign in your property by your self and do some low cost marketing and see what the response is from the market or you could hire a professional REALTOR to list your property. Just make sure that the agent that you hire is knowledgable, aggressive, and above all honest.
I'm not understanding your question or situation. The only way to know if someone is interested in buying your home, is to list it for sale, and see how much response you get. If you don't get much response, then it could be a number of things: the location, the price, etc. Some things you can fix (price) others you can't (location).