Or you could even mount it on the roof in the rear with a steel platform.

Did all of the work myself, new stainless steel appliances.

Up until about a decade ago, once you filled up the Fannie/Freddie slots, there wasn't much of a choice if you wanted to continue to expand; you had to go commercial. 

I would like to upgrade them to stainless steel and wanted to know where you shop for these items?

If you're concerned about them "driving off," maybe install structural steel cable as a guide?

Purchase price: $332,000 Cash invested: $67,000 Sale price: $445,000 Purchased this great 9 bed 4 family at a discount. 3/4 units were rented so we increased the rents on them and replaced the timber supports on basement with concrete filled steel supports.

A shooting range for pistols only with steel cowboy type targets in operation from 2 pm to 5 pm every other day.

Even the decrease in 10% rent can have adverse effect on cashflow.I am also open to do a cosmetic repair where I can improve some of the stuff to compete with newer homes in the area (say granite countertops and stainless steel newer appliances).

Coarse steel wool to plug up holes, although sand and cement work great.

@Shaye Steele Congrats on getting your license!