That said, sure it's possible, but I look at it a little like pest control.

Here's my general rule of thumb: if it's not attracting pests, interfering with neighbors, or causing permanent damage, I usually give them a verbal reminder of their responsibility and then leave it alone.

Favorable landlord/tenant laws, taxes do NOT reassess on the sale, land constraints with lots of demand, tourist destination (Lake Tahoe) right next door, consistent job/population growth, very minimal amount of pests, etc. 

Yes, but that is quickly shrinking with the rising cost of property taxes, insurance, security, cable, wifi, lawn service, PM fees, cleaning linens, book keeping, pest control, furniture and appliance maintenance, power and water, etc.Also, we bought the property new in 2018, rented it for a couple of years as a LTR and then when we went STR, we had to put over a $100K into it to upgrade it to luxury status to charge for the higher rents.The property has a great location right in the perimeter, and near to the Atlanta Airport, so that is what it had going for it. 

California is infested with vast numbers of bums, but we saw zero, yes zero, in Vilnius, the Capital of Lithuania, and just three drunks at the train station in Rome and one guy with a tent near a castle.  

(Planning on buying 1 a year until 2023)Right now...Collect $4,580 a month in rent.Expenses are $2,298.01 in total mortgage/tax/insurance and $409.15 in total PM feesNet $1,872.08Of course other expenses come and go (gutters need cleaned out, lease fee on a new tenant, annual pest control, etc.) so that net is never a fixed income, but very variable.Right now I don't touch any of that money, as it goes into a business account to be saved for the next one.My primary residence's mortgage is also due to be paid off in 2023 as well freeing up even more loot. 

You'll also need a handyperson, plumber, appliance repair person, electrician, lawn care/snow removal, and pest control.

Beacon Hill estate sale (I won't even tell you how many bedrooms this one has, suffice it to say its a lot) - extensive cosmetic, rat infested, some water damage.5.

E.g. utilities, software, pest control, accounting, legal, Advertising, Alarm service, taxes, merchant fees etc.

In FL, I imagine that climate control is essential, as is pest control.