You might have to replace p-lam every 3-4 years to maintain a nice appearance.Absorb Utilities:  If you invest in an asset that reduces expenses, make sure you benefit from that reduction! 

This process allows you to maintain occupancy and solid income collections while you manage the renovation project.

Steadily paying off consumer debt, and maintaining low consumer debt utilization, had the biggest impact.Also, you have multiple credit scores.

I'd also suggest that you maintain two streams of rei - have an investment stream that is an outgrowth of what you've done to date. 

I would want to track/maintain the following info:property nicknameaddressresidential or commercialname on deedcurrent value (could perhaps be live data, sourced from Zillow, etc?)

For example, if you form a Texas LLC to hold Arizona rental property, you'll wind up not only having to maintain it in Texas, but you also need to register it in Arizona and incur costs there as well.Unless you have a complicated business need (which most people on BP don't have), I recommend you stick to the state where the property is located.

Who maintains, park or city?

All sources I’ve read on pretty much say that empty lots are maintained by the park owner.  

Purchase price: $221,000 Cash invested: $42,000 Beautiful, well maintained cape with brand new deck and fenced in backyard.

Therefore maintain a spreadsheet with the lifetime expectancy and incoming likely replacements and make sure you have that covered.