Then figure out how much of a discount you deserve for buying 12 at a time, 10-20%?  

We discounted the rental rate because they only wanted to rent part of the home.

Please DM me as I am always baking off REI Software products and giving it a thumbs up/down, or meh.... etc. 

I'm grandfathered in to the lower pricing of the past (was originally like $850 for their top plan, and I had 36k a month plan) - and they allowed me to add an additional market (which adds additional 36k a month) for a discounted rate.

he wants to sell, and willing to sell his part in a discount

There are people who will go out and find anything that they can to get a free/discounted stay.

John is right about the enemy method, its the only accurate way to estimate revenue.The blanket estimated revenue amounts on analysis websites like AirDNA can be a decent baseline, but generally include too big a pool of properties to give a very precise estimate.The way I use the enemy method: Sign up for a pricing software that has market analysis (I use PriceLabs but most of the pricing softwares have this feature).

This is what i have for closing costs. i think the only thing i can actually save on is the "discount fee".

low cashflow high appreciationNotes purchased in the secondary market at discount to remaining principal balance have the built in capital gain profit with potential for greater ROI thru early payoff or early PARTIAL paydown.  

So I would suggest invest in both as long as you can get them at the right discount to where you can scale.