Building on what he said, if you are having trouble tapping in, and want to explore other options to maximize return, please feel free to reach out.

If it is free, you'll waste a lot of time and money on people that aren't serious. 

It’s free money so why not?

Feel free to shoot me a private message.

Or is it viewed as a "brand-new" company since a new LLC is formed and the corporate credit is non existent? 

An LLC is not free.

Depending on how you set it up, it won't reduce your earned income, but there may be benefits to making the rent itself tax-free for many years or at least reduced (assuming you never recapture depreciation).

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

For my Mira Mesa Rental( 2b/2B Condo) i easily find good quality tenants(High credit score and stable  job) through Zillow.

Must have not terrible credit, and no significant criminal record.