Well in order to answer your questions, we are going to need a little more info. What is your plans for the property? Fix and Flip, Fix and hold, wholetail? What is the square footage? What are the area Comps? Type of neighborhood?
Depending on how bad the mold problem is and how big the house is will determine the costs. Next is the question of why is there a mold issue? mold = moisture, so there could be extensive structural water damage that needs to be repaired. You may also need a new roof. The water had to come from somewhere. So lets just take some wild guesses here:
Professional Mold remediation guesstimate 10K
Fully gut and replacement of kitchen (depending on size and quality level of upgrades) can average 10K - 35K.
Bathroom full gut and replace 5K - 15K (depending on fit and finish)
Central Heat and Air for a 2 Ton unit 10K depending on type, and if you need duct work add another 3K-8K
Interior paint 2K
Exterior paint 2K-5K
Using reverse cost estimating for contingencies add another 7.5K - 10K
So just guestimating your looking at 95K rehab costs.