I highlighted anything that I didn't know or understand and started researching it here on this site. 

The structure we landed on was as follows:- Fixed Builder fee of $300k (each project varies but are 2-6 units, and 5,000-9,000 total finished sq ft)- Fixed Return on all my initial capital invested of 50% (plus return of 100% of initial capital)- Remaining Profit Split of 60/40 (60% to me, and 40% to him)I understand a lot of this hinges on how accurate the proforma is and how close we can get to actually hitting our development costs estimates, build cost estimates, and sales per sq. ft. estimates.

I've heard several podcasts including Amy Majoory and the Polites who talk about using OPM for down payments but I still don't understand the logistics when the PML is only for the down payment, but the other funds are borrowed from another entity.For example: how do you structure the PML plus the actual purchase/rehab loan and still make money?

I understand this will vary from person to person and could be a debate so feel free to PM me if you have some thoughts.

Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.PM us if you’d like to discuss this logical approach in greater detail!

Get with a good agent who understands short term rentals because the more of these you do then you can scale the insurance under a Business Owner Provider Policy (BOP) and then you don't end up with a dozen individual policies out there for each property that cost you a fortune.

Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

While I have solid income and good credit, I'm uncertain if I'm too new to take advantage of this opportunity.I'd greatly appreciate advice from experienced investors on how to approach this.

.- thats  good to hear .....fyi - when checking the  caps on an ARM loan - there are  3  different caps to understand and  be aware of  :  1) the  intial  cap  is the amount the rate  can change on the  intial  adjustement - this is often 5 or 6% ...so if your rate was  intially 4% - this means the  rate  could  intially  change to 10% +  2) the  lifetime cap  is the  max  amount the  rate can  change over the loans life - this is  often the same as the  intial cap at  5 or 6%  3) the  3rd cap is the one you mention  which is the  period  cap ..this is the  most the  rate can  change  once the loan  begins to  adjsut    annually or  every  6 months ..this is  often  2%