Contact at least 3 general contractors to get a bid and get it in writing. Chances are the estimates will vary greatly. Make sure you are comparing apples to apples. Then, get references and really call them. Lastly, make sure that they are licensed. Don't cut corners and don't take chances. You'll be happy you spent the time to check them out. Basements that are finished really help sell a home. It didn't used to always be that way but, more and more, buyers require it. They don't mind a smaller home, as long as they have somewhere to "escape". Living is SLP is an ideal spot, but with it comes smaller homes. Best of luck!