From there mechanical and large items are my first priority (water heater, HVAC, roof) - though an inspection gives us more information and those items can be used as great negotiation tools during your due diligence period. 

Lenders or investors who have short lock up periods but have years of experience feeding their business with new capital would give me more comfort but anyone who is just starting and is promising a rate of return or return of capital in a set period of time would be alarming because they very well could be reliant on fresh capital to make good on that promise and that usually ends poorly.

Then wherever the water is getting discharged off of the roof, that what water is getting at least 4-5 foot away from the structure before it is left to drain with gravity away from the property. 

Added a new cistern for water and added a shop bathroom in addition to completing the apartment.

Maybe a fresh coat of paint, flooring, unless what's there now if salvageable, make sure your electrical and plumbing  are in good working order.

Absolutely - East Hill is a really popular area for traveling heath care professionals, as well as military on short term TDY orders who are looking for furnished stays.Keys to success for my condo have been keeping the furniture fresh, and not looking like every other listing out there.

In the desert it costs me LESS than $20 for water.

At one single family house there was an oil haot water boiler with domestic hot water.

She says that if she turns the flow low though the water does start to get warmer but it never turns hot.

Mold requires two things to grow: water and food (dust is sufficient food).