There are a ton of tools within his program that are useful, but none of that stuff matters if you can’t get deals bought/funded through them which is the only reason I paid my money.

It's good to hire your own representation that is working on your behalf, not the seller's.Letter of IntentIt's a tool to negotiate formally and in writing. 

Quote from @Trey Fischer: BP has some type of collaborative agreement.

What are some recommended platforms or tools that help streamline the payout process for multiple clients while keeping everything organized?

What are the most important tools to have in place as we get this going? 

I have read many DST PPM's and have come to conclusion the Sponsors are the only one that can reliably profit from these investment tools, whereas the investors can only trust their due diligence identified enough red-flags.

Transactional funding definitely seems like a powerful tool for quick flips.

Spend some money on tools and get your hands dirty.

For instance, should I base it on a dollar amount per hour I work on the project, either as a PM or as a guy who actually puts on the tool belt?  

It’s a powerful tool but requires careful management to balance risks and rewards.