I have renovated with contractors and some DIY.

Worst contractor experience I've ever had.I then hired a second remediator.

Even in the Covid era I've found that contractors are still asking top dollar for overhead and profit, making many projects unfeasible. 

Recommend you do at least 10 at a time to make it worth the contractor's time.5. 

Having trusted resources in market have been helpful in managing our properties and contractors especially when my non-real estate related consulting business is in its busy season.

Will be checking out buildings & contractors this year for insights & quotes 

There are a lot of good 1-4 unit BRRRR opportunities here too with also good General Contractors coming from Columbus or Dayton to work on the projects.

I would not say it is a deal breaker but I would speak with the city/county as well as septic contractors to get an idea of the cost (in dollars and time) and use these items to negotiate/renegotiate with the seller.  

He’s a general contractor in Chicago that does large rehabs and buildings. 

I buy my contractors gift cards each year as a thank you.