You may want to contact a local real estate agent for a market analysis. They can look at comps and tell you what homes are selling for in and around your neighborhood. They could even do a sellers net sheet to show you proceeds after all costs have been paid. I hope that helps!
That would depend on it's current value and what you owe on it (if anything). Contact a local Realtor and ask them to do a Comparative Market Analysis (CMA) on your property using Sold comps within a 1 mile radius of your property that have Sold within the past 3 months. This will give you current market value. The Realtor should also be able to give you an Estimated Net Seller's Proceeds Sheet so you can see what you will receive at close of escrow. Most (if not all) Realtors will provide this service to you at no charge and with no obligation. (They are hoping, or course, that if you decide to sell your property you will hire them as your Realtor).