And, past performance is no guarantee of future results. 

I know they’re an essential tool for analyzing a property’s financial performance, but I want to ensure I’m approaching them correctly.Could anyone share examples of what a good T-12 looks like or highlight key items I should make sure are always included?

@Randall King If you find the property isn't performing well, a 1031 exchange would defer the tax and concentrate that equity into something that has a greater cash flow potential, like what @Corby Goade said.

I currently use the two family cars we have to conduct these activities, and I am looking to buy a new vehicle that is more suitable (a truck) for the tasks that I have been doing. 

Once you have a market chosen I'd connect with a realtor/wholesalers in that market through BP or Facebook groups to get a first hand view from them on how their market is performing.

My Glendale house still performs well, but it just seems to have a bit more on the member management side than the rest due to the members I have been exposed to. 

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator – and they often select the first PMC they call!

This is purely anecdotal, but I've noticed that the top performing properties in my area lead with an exterior shot.

If you are interested I could get you detailed information on where STR's perform best within the country.

If this fails, then perform a land trust strategy.