We made a decision to do a DSCR loan and our lender asks us to redo the percentage of membership on the operating agreement.

I run a small but successful business that operates only on word of mouth.

I run a small but successful business on my off days from the FD that operates only on word of mouth.

Just make sure you have a solid "core 4" that you trust and are looking out for you.

Other simple things include grounding/reversed polarity of outlets (you can buy an outlet tester at Home Depot for $5), using foil-faced tape at furnace & water heater flue pipe connections, operable smoke/CO detectors, cracked/chipping/peeling paint if your applicant has children under the age of 6 (I think?)

There aren't many options that provide the full suite of services (cleaning, guest communication, etc) you need to operate successfully. 

It took a couple of weeks to learn my job — I was in charge of the medical laboratory at Bagram, as well as the laboratory consultant for all NATO operations in Afghanistan.

I believe that applies in every state.So instead of operating below the radar, why not get your real estate license? 

I'd maintain control, and the operating agreement would be such that if we don't pay me $x/mo, he could take full control/position of the LLC.Alternatively, I could stand up an LLC and have the seller make a $75k loan to the LLC with terms, and acquire a commercial loan for the remainder.

There is no tax benefit to the LLC because for the purposes of taxes it is a pass through entity, which means tax treatment is the same as if you operated as a sole proprietor (just owned it directly).