There was an issue there of having enough water, but I have not heard anything about that in a couple years.

Not to mention insurance, LABOR, water/sewer rates, building materials, etc. 

You need to have a pool home close to the water in order to be successful there. 

And when I applied for a rental license it was a really easy process, they cared more about the safety things like having enough smoke detectors and fire extinguisher and GFCI outlets near water, etc. 

It'll still be mediocre wine in Fredericksburg and brown ocean water in Galveston, but there's a massive increase in the pool of people that can hop in the car and go for a weekend. 

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

So I’m in a bit of a bind, I have a duplex I’m house hacking we remodeled entire thing, new hvac, electric panels, electric main, updated plumbing, water heaters, furnace, install central air, roof.

It's required by ordinance that the water be changed between each guest.There may be a certain amount of trial and error as you work with your cleaning/maintenance staff, communicate well with them but give them space to do their jobs, and if it doesn't seem to be working out, go to someone else.  

Have you replaced your water heater anode rod with a powered anode rod, such as one from Corro-Protec?

Every extortion attempt I have experienced in Baja has happened North of Ensenada.Beyond Ensenada are cool things like wineries (I do not drink wine), La Bufadora and its blow hole, great little fishing villages, Gurerro Negro and Scammons Lagoon (best whale watching on earth), San Pedro Martir (least visited forest region within a day of San Diego and has the twin Picacho del Diablo peaks and the national observatory), numerous Missions in various degrees of condition, hot springs, party towns (San Felipe), surf towns, snorkel/diving (anywhere in Sea of Cortex in Baja Sur), Sand Dunes (Baja races), etc.My worse theft south of Ensenada has been some bottled water.So the question is why Rosarito?