Buying first house what should I do

[Jasmond McArthur]

Super new , Got a lot of questions .

My dad is said he would sell me his other house for 13,000. He has gotten offers from wholesalers for 70k. It needs allot of repairs, most likely everything needs to be replaced and upgraded . I’m mainly wondering of which way to go with this. Should I buy and sale it at wholesale price or brr or buy renovate and sale . He paid cash for it years ago and so there should be equity in it . Not sure how to find out how much though . 
thank you in advance for any suggestions