Great points made all around, but one of the primary factors to house hacking is to get "primary residence" rates on a house that eventually becomes an investment property after you occupy it.In order to make an informed decision for your scenario, ask your lender to run the actual numbers... taking into account your credit, down payment, property type, primary vs. investment property, etc.

We were assured that Brett Miller was reputable and had a long and reputable history in Chicago Real Estate.

accommodate a buyer's request for detailed rental and financial history, when selling only a small segment of your overall portfolio?

From fully automated Kiosks (an ATM looking thing that rents the unit, sets up auto billing on tenants bank or credit card, dispenses a lock if the new tenant wants to buy one etc), to smart phone Apps that do the same thing (except vend a lock) to 24 hour USA based call centers that will manage the business and rent the units for those customers who want a human to talk to (and the Kiosk software, smarphone App software, and call center sofware can all be seemlessly integrated within your business management software.

I checked with both my normal business and personal credit unions and they could not come close to that. 

In AZ we don't have to give them anything but we do chose to give them a pro-rated rent credit if they decide to go elsewhere.

You’re right, I will just ask the selling agent to show me where it’s stated in the AOS.For the leases, I didn’t really like the thought of inheriting tenants because I didn’t get to do a credit/background check or check their application.

Many vendors I have called quote less and they take credit cards directly from the owner but to use the credit card through RPM preferred you would have to pay a hefty fee.

Regional banks and credit unions are generally the best places to look, and HELOCs vary greatly by lender... it's not like the Fannie/Freddy stuff where you jump through all these hoops to shave 0.125%, it'll be easily 0.75% or more of a spread between lenders. 

I would tie it in to one of the rental unit meters and offer the tenant a utility credit on their rent.