This may require consolidating your 50+ houses to come up with the money, but it could allow you to scale up without buying the giant apartment complex that you are comparing your other option to.

I assume SD consolidation is security deposit?

Lot's more of this to come as office leases burn-off and tenants consolidate into smaller spaces. 

I have been denied other loans before in an attempt to consolidate my bad debt.

The seller is interested in this option with $665k up front because he wants money up front to consolidate some other debts and to walk away from this property.

I consult on partnership strategies, Development Strategies, Accounting and IT Infrastructure, Organizational Structures, Operational control, processes, perform financial analysis and cash flow analysis, help standardize company ledgers to create consolidations, HR and Payroll, customer relationships, etc....basically anything that has to do with your business, I can find a way to screw it down tight. build a better mousetrap.And no I am not a Realtor

An LLC wouldn't technically add coverage available if something happened.I usually suggest to consolidate all of their policies and increase liabilities on their policies. 

I'm hovering at just under a 6% yield of the portfolio, getting rid of a few and consolidating others.

It is all consolidated. 

They claim to offer up to $250k with funding in as few as 3 days to use for things like debt consolidation, refi, working capital, business development, startup loans, etc...