The only problem I have with them is their accounting software and communication can be better. 

Unit in the attic, mini splits, or super efficient gas unit that runs whole house and charge higher rent.

Set very clear expectations, since they're living in the house with you think through how you expect the arrangement to work and make sure that's communicated to prospective tenants prior to move in.

-Listing and Agent communicated tenant pays $1750 disclosures say $1500.

From there, I gather documents, do a background and credit check and follow up with past landlords, references.Doing it this way keeps a record of everyone that applied, the information they provided you with and a written email trail of your communications with them. 

And who should you be communicating with in order to find them?

All tenants have been contacted and reminded to communicate if there are issues with the unit, jobs or their ability to pay rent/on time.

So many landlords applied for EIDL (loan directly with SBA, not through banks)....nothing for me...nada, no acknowledgment, no communications whatsoever from SBA....Anybody here received communications from the EIDL Loan Applications? 

Also, how do people efficiently scale their business to buying 10+ homes in a year?

He is at a point now where he can see how keeping it simple really works beautifully, effectively, and efficiently.