Rehabbing a smokers house

[Eric Fung]

Hi, I’m looking to invest in a duplex where the previous owner was a heavy smoker. I saw a lot of posts on using Kilz and Vinegar and cleaning the Hvac and replacing the carpets. I’m out of state so can anyone share how much cleaning out a smoking unit costed them? Any additional recommendations would be nice. We were thinking to leave the kitchen cabinets but after reading some more, it seems like everything needs to go just to be safe? This would be in Tennessee if that helps.