You are looking at public records. not a listing for sale.
When you are purchasing a house, it depends on the type of loan that you are using. FHA requires at least 3.5% down. If you do not want to pay PMI(its.25) then you need at least 20% down. VA requires
0% down. There are also closing costs involved. You need to speak with a mortgage person about all this. I can give you some names if you like.
Hope this helps