I assume documentation was a top priority here when discovering the property's conditions.

It may create a problem for you later if your bank discovers the account is owned by an LLC that no longer exists.

Therefore, remote investing is your only option if you do not live in a city that meets all these requirements.Regarding your concern about not being able to visit the city: You likely won't discover much more during a week-long visit than what you can learn from the internet in a few hours.

The property had a first mortgage, as well as a second mortgage, both from the same purchase money lender.After receiving the trustee’s deed and recording it, I discovered two “Independent Solar Energy Producer Contracts” recorded against the home.

Like me, you’ll quickly discover it’s not a walk in the park.

They may easily discover the clubs, investors/end buyers themselves and just sell their property to a highest bidder without sharing proceeds with a wholesaler.

I do an AI for REI seminar and just discovered a new tool I'll likely test out soon. 

Any podcast or blog recommendations for DMV STRs or general STRs?

There's so much information here on BiggerPockets as well as the podcast and books and other websites, books and blogs too that are either free or very cheap. 

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.