Estimating home's value when wholesaling

[Yenisel Avila]

Hi and happy Easter to all,

I have a personal situation that I need some advice on. My parents' home is worth approx. $429K on Zillow. However, my mother has completely devalued the home due to incomplete "DIY" construction projects all over the house that are shoddy and not to code. She also built an efficiency in the garage, a half "bathroom" in what used to be a closet and whole mess of other things. Should they cut their losses and sell it for cash through a wholesaler or try to fix it through a professional contractor? I feel as though the house has upwards of $80k in repairs, but I want to know what the cash offer would be in order to make an informed decision. What criteria do wholesalers consider when making an offer? How do I calculate the ARV? Keep in mind that I am interested in wholesaling and I want to help my parents out while possibly making my first wholesale deal as well. Thank you for your input.