There is a clear as day sale clause in the original lease signed by the 1 bedroom unit that the tenant is living in in question. 

They’ve proved to be very picky/not ideal and we’d rather move on.In addition, we felt remorse when we signed with them thinking that we should have sold it instead of renting it another year.

I may be missing something but my attorney would tell me if you don't have the cash for the deal you are about to sign, don't sign it and keep saving.What other options have you heard from an attorney?

Besides, some actually see it a as a "sign of professionalism" (it was kinda odd to me at first) when they realize that I have multiple properties.I would agree, however, that if you are investing in some lower class neighborhoods as has been discussed on BP, I would need to take steps. 

I liked him and what he was offering (and being in the coaching space myself, I’m not at all bothered that he was selling something) but I’d never heard of him before, so I wanted to do a bit more digging before signing up.I am curious if anyone in the BP community  has had experience specifically with him, his courses or coaching program and would mind sharing their thoughts. 

I have been checking into this idea - find vacant land, determine it's general suitability, find developer and sign the option to lease.

The danger of signing up with promoters of a tax strategy.A lot of times, you hear about a specific tax strategy (REPS, STRs, syndications, 1031s, DSTs, conservation easements, and so on) from promoters who target a specific group of people.

I can see the rates they're advertising being possible BUT I doubt that they'd had the same spread if they were signing leases in today's market. 

But, this might not exist prior to close.Although I'm just starting out and don't know too much, I would think having your tenants sign estoppel certs during escrow (as @Aaron K. suggested, to which I just learned) is necessary so as to avoid any unwarranted legal disputes. 

FYI-  for a long term rental, a lender will consider the income right away (75%) if there is a signed lease agreement or an appraiser' estimate STR/MTR Income Must Show Up On Your Tax Returns- Before a lender can recognize that income for underwriting to offset your DTI, they must see it reported on a schedule E on your most recent tax returns.