Assuming you found these properties in hot zip codes finding buyers shouldn't be too hard to come by but in regards to estimating repair costs Brent Daniels (he's in your market) has a pretty good video that explains how you should be calculating these costs: (Don't know if BP will allow me to post the link but if you don't see it just youtube "Brent Daniels Easy Repair Cost Estimator")The easiest way to find out your wholesale fee would be to find out what the cash comps are for neighboring properties that are in a similar condition to the ones you'll have under contract and see what investors paid for those properties. 

@Terrance Doyle and I are excited to launch a new BP show on YouTube called "The Real Estate Ride Along Show."

I just looked up a "how it works" video on youtube.

Go to youtub and put in selling with lease and option and start watching. 

There be dragons.If it's just the building, look at the cost of commercial lease space in your area.Peter Harris has good content on YouTube about running numbers on commercial properties.

real world problems are people based and rely on Direct human relations with real people outside of software programs and algorithms. 

I highly recommend to read books, listen to a podcast like the mindful multi-family show and watch youtube videos.As growing a large business myself and speaking from experience.

I listen to Podcast and watch YouTube videos to try to comprehend, but I think if I see it visually exactly what I’m doing start to finish of what I’m getting into, I’ll understand it better.

They also have a youtube channel on leveraging HELOCs to accelerate your mortgage payoff.

-Be the best Father, Husband, and person I can be by the grace of God-Acquire 1000 units in 2020 -Create 1000 true fans by launching our multifamily podcast - coming soon-Create a Youtube channel to equip investors-Hire the right property manages for each asset we purchase this year (we self manage each asset)