I haven't dealt with unpermitted areas before so I am looking for some advice on how much it will cost to bring them to code as the two enclosed patios will add 659 sqft. of living space taking the sale price from 235,000 to 250,000.

It's your property, you may choose any applicant you wish, within the housing police codes, and do not give a reason when rejecting unless your state codes require it.Bigger problems arise when a landlord chooses tenants based on anything other than most qualified as there screening criteria outlines.

You could adjust that up if your codes allow. 

@Sean Bell Go to the Rutherford County website, Planning and Engineering, and download the Zoning Ordinance and also look for Building Codes or Subdivision regulations.

The deal with them is a flat fee of 100.00 total to list on the MLS and they list it with all the FSBO sites and I use my own number with them so all prospective buyers have to call me to give them lockbox codes so I have full control of the listing. 

If we look at only this zip code there are 92 total homes that have sold in the last 3 months or are listed on the MLS.

I installed a code lock for the house and key locks for each individual bedroom. 

Do have an idea of what zip codes your looking to buy in?

That means bringing all electrical up to code and it may be worth more than what you can sell the house for depending on the location.If they are pumping water out of the basement - it could be a simple matter of putting in a $6,000 "waterproofing solution" (installing drainage tiles pointing water to a sump pump) to a $12,000+ repair of putting in structural steel to support a collapsing basement wall due to hydrostatic cracking occurring on the foundation.I would tread lightly on this deal.  

@Cody Barrett thanks for the code, but it is my understanding that you cant ask this of the "service animal", but you can ask that question if it is a "comfort or companion" animal.