@Don Gouge thank you for this. In regard to the ac and heat source there is currently a wall ac unit on the main floor and as for the heat the owner said he never has used it but might put in a new one as it is located under the house in a crawl space. This way can place it on one side of house to run the duct work down the center of the house to shoot up to second floor st the same time as it is blowing out below on main floor.
If I was to go through a title company would I just call them and let them know? For my two other houses I have used a realtor to help out with the purchases.
In regard to the cost it very well might be smaller than I estimated as I have a 1200sq ft house and seems to be a lot larger than this one. I just looked on Zillow to see the sq ft it shares on there. So even if I were to do all the work myself it would still prob cost more? And find deals on things to install. Just to point out the area this house is located is very run down so I don’t feel I want to make it look like the ritz Carrolton for the area or it might be broken into.