I am almost positive she is going to stiff me for the rent and electric bill.

Many of us have a wound ‘ an unhealed source of continuing pain from the past that does not allow us to move forward powerfully.

I have made several loans to SDIRA LLCs and on each of those transactions, no one (from title, escrow, underwriting, etc.) balked at the Manager for the SDIRA LLC using the powers granted them by the Operating Agreement to bind the company on all loan/closing documents.

The purchasing power of their paychecks goes down, down and down.

Often I go in and spray foam insulate as soon as possible which may cost me $7-10,000 but will not only save me oil money but will keep the units more comfortable year round and cooler during the summer keeping tenants electricity costs down for their A/C.

Post crash no one in power wants to be the bad person and raise the rates and that is why they have stayed low since. 

Other than the obvious of older plumbing, electrical, what else should I look out for?

A full conversion is expensive, not only you need an aditional kitchen, you also need asecond HVAC, water heater, plumbing and electrical system.

The BRRRR Method can be a powerful way to scale up your real estate investing. 

Easiest is to simply divide it by the number of people for anything that is variable (eg heat, electricity).