The property has two existing 2000 sq ft shells (one was built to be a huge garage and another a detached patio with high metal roof and think concrete).

After that I decided to just offer that option to them as long as they met all my other criteria. 

Typical homes in Las Vegas have tile roofs, desert landscaping (rocks), stucco siding, metal doors and window frames, and concrete block fences all of which require little or no maintenance.Low RiskLandlord Friendly Laws - Nevada is a business friendly state.

Diversify into gold, silver, mining stocks of same, & keep track of the price of both metals, ready to sell, if both go down in prices, so you don't loose too much when you sell.

A piece of precious metal is tangible.

Luckily they have already met all the requirements for credit check, criminal, eviction, etc.

I always have at least a $15k budget on our properties, there may be old asbestos siding in good shape but if it's ugly then we're going to paint it, if the porches on the front of the house are ugly, we're changing them, wrap the window trim in metal, throw a new roof on even if the current one isn't yet leaking, parge the foundation, replace the old cabinets, don't use $2/sqft laminate flooring, replace the dang trim if it's been painted over 100 times, remove the ugly wires from the outside of the house and have the cable company install new ones, fix the grading of the yard, trim trees, and repair sidewalks.

In my area, I see people actually putting in replacement windows, laminate flooring, 50 year metal roofs, and the standard kitchen/bath renovations.

There are fees associated with purchasing and selling precious metals and this took me over a week and a half and I actually lost $500 on this.

If you have a metal mobile home, there are companies that will disassemble and take the metal for scrap.