Each building has been through a different stage of rehab before it hits the market. 

I saw a course  about Master Lease  yada yada yada Did you know you could  arrange 50 to a 100  units  in just 3 months  and make a bazillion dollars for only 5 hours a month totally risk free?

, staging, marketing materials and advertisements. 

- We will now use staging.

but definitely solid base hits that moved me from the analysis paralysis stage.

Or is there another arrangement that would be better than a split?

@Priscilla Z. arranges the meet-ups. 

One of the most powerful pieces of advice I can give any investor in the early stages (that means starting out) is to, choose your teacher and/or mentor with the same due-diligence you would use in searching a heart surgeon for yourself or a family member.

They bring their very nice furniture with them and, in effect, stage the house as well as monitor it.

However, presuming that you know the ins and outs of due diligence and the escrow process, I suppose you as the buyer could reasonably negotiate down with the flipper from retail price to remove the RE agent commissions, staging, marketing, and additional holding costs that wouldn't be needed to sell direct to you and it might be in the flippers interest to keep a CRM type list of such direct buyers to avoid the longer RE agent MLS listing route.