The only requirement is to conduct business activities, which you do.As mentioned by @Ashish Acharya, there're no tax benefits from creating an LLC.

They need to know you will file for eviction if they do not pay their last month's rent and only an incompetent landlord will fail to conduct an eviction search on an applicant. 

I'm looking at a condo purchase where the legal owner is in some way incapacitated and her attorney is conducting the sale. 

In the present case, the transient rentals of petitioners' property likewise entailed sufficient activities to constitute a trade or business, and while these activities were conducted by B'Mae's, they are attributable to petitioners for purposes of determining whether petitioners were engaged in a tradeor business.”Again, that the taxpayer was “passive” did not matter.

From there I did as much research online and I went to conferences, I bought courses, read books,I listened to podcasts and youtube videos.A good place to start is with Fuquan Bilal's  book Called  "Turning distress into success".

I then call these folks to discuss the program and conduct an initial qualification. 

They put on a real estate conference in the fall.

to conduct real estate exactly like a real estate agent or broker and get paid to bring two parties together. that requires a license in all 50 states.. but that would not sell GURU how to wholesale courses if the Guru's actually told you the laws

What are some tips and tricks for conducting due diligence on properties going to auction?

If you don't establish the LLC correctly, or if you don't know how to conduct business through it in the right manner, then you might not be protected.