If done then worth renegotiating at some point for a big discount.

HostGPO offers discounts in every item needed to furnish and decorate a rental house.https://podcasts.apple.com/us/podcast/the-short-term-show/id1576433178?

The complex is listed for $675,000 and this price comes from each apartment being valued at $90,000X32=$2.8 million discounted 76% for the number of years in the program. 

Sometimes they owe him a favor and he gets a discount that he passes on to me.

Try to negotiate a discount in you purchase price whenever you can so that you have "built in equity" in your properties.And remember that as long as there are tenants that need a place to rent (which covers your mortgage and expenses) then you don't need to worry about what the overall values of real estate are doing.  

I'd worry about getting the roof and HVAC up to snuff before I worry about taxes, as any buyer is going to discount his offering price due to imminent repairs.

If they feel that they gave you a discount (whether real or based on false assumptions of market value) then that could damage the relationship.There are definitely benefits to both buyer and seller in doing an off market sale like this, just make sure they have all the information you have so that it stays above board.Good luck!

Shane could help tremendously as well when it comes to giving you an idea of what recent rentals look like .. i.e. comps, finishes that investors are using on their units (kitchens, bathrooms), amenities offered, turnover/days on market for rentals in Cleveland Heights, etc.Best,Abel

Over time, this adds up.Concessions = discounts or incentives you give to tenants in order to entice them to rent your units.

That's all I've done here, and it's helped me grow my network tremendously.