You want to understand their track record and what have they done.Also ask for a list of 5 references of people who have invested with them.

They are referring to the inspection period.

Hi Does anyone has references to good Portfolio lenders in Maryland for Rental properties for good rate

REFER THIS CLIENT or find a broker who is willing to co-broker with you that will let you look over their shoulder.

Since you are also referring to realtors, I assume you are looking at 1-4 unit properties, maybe a little bigger. 

I would highly appreciate any advice, links, or articles that anyone can refer to me.

@James Bradin,Are you referring to your quad in FL?

The $30k is the imaginary unicorn you reference in your post; it's not the 50% or 60% that you elude to.

If it were me, I would refer the tenant to my lease language. 

Two years or two tax returns stems from the period outlined in the safe harbor or rev proc 2008-16 and referred to in a couple case rulings as two years, two calendar years, and two tax years (appropriate times not recommended or required times).