I'm more experienced as have been in multiple RE sales (with agents and directly with owners too) over my life and been an LTR owner for 15 years and just want to do STR at this point, but if this program is legit then I would be the one searching for houses while he did the calls.

A good program we use is LEAP.

A DSCR loan is one of them, but with the rent only being $700, chances are you'd need to go with a no ratio program to make the numbers work.

The truth is most methods work - cold call, direct mail, referral programs, driving for dollars, etc.

Listen to his podcast and you will get a feel for the program. 

See the chart from Fair Isaac Company (FICO) below: FICO Score Pct of Population Default Probability 800 or more 13.00% 1.00% 750-799 27.00% 1.00% 700-749 18.00% 4.40% 650-699 15.00% 8.90% 600-649 12.00% 15.80% 550-599 8.00% 22.50% 500-549 5.00% 28.40% Less than 499 2.00% 41.00% Source: Fair Isaac CompanyAccording to this chart, investors should use corresponding vacancy+tenant-nonperformance factors of approximately 5% for Class A rentals, 10% for Class B and 20% for Class C.To address Class C payment challenges, many industry "experts" are now selling programs to newbie investors about how Section 8 tenants are the cure.

OR does anyone have a good experience with a rental program?

They way full doc programs work is they use this worksheet: https://content.enactmi.com/documents/calculators/Form1038.C...This approach will allow you to add back the paper loss of depreciation, and add back mortgage interest, property taxes, insurance and any HOA dues. 

Does anyone work with Darcy Marler? New construction residential coach? 
If yes, how happy you are with his coaching? 

Even as a seller focused or listing broker, providing investors with live mortgage rates, programs and accurate resources has proven essential to maximizing transactional incentive and client conversion throughout the years..Although I've never actually executed dual duties on any single transactions (and don't think most investors want to entrust that responsibility to a individual party - nor would I want it!)