One of my SF tenants installed 6 cameras himself; he's very handy and I'm all for having cameras monitoring the property as:A) It deters crimeB) If someone is dumb enough to commit a crime it's recordedC) If someone gets hurt or falls on the property (or claims to have) it's recordedD) Having exterior cameras makes most tenants feel saferE) Some insurers offer a discount when a surveillance system is installed (the same goes for an alarm system)I don't know why your one tenant is so against outdoor cameras but it's a benefit to everyone.

It’s just like when people say all cops are bad or all lawyers are thief’s etc.

Just to add, when you move out there may be more expenses that you are not considering such as: Rental license for each unit [$63/yr], Lead cert for each unit [Varies depending on #bedrooms in each unit]Fire alarm monitoring (if needed) [$4-$600/yr]Fire alarm cert (if needed) [$100-300/yr]Sprinkler/standpipe cert (if needed)Refuse Trash Bill [$500/yr] or private trash pickupElectric bill for shared areas (Assuming everything is separately metered)Water: Most older rowhomes do not have separate water meters.

Sec 8 also does a property tour and flags various safety issues (confirming smoke, co alarms, etc) so could get an advance list to make sure items are all done or you have no concerns about passing the basic inspection before getting too far down the road with an interested sec 8 tenant. 

It's rewarding and it's money coming in, but it's a hell of a lot of work and coordinating cleaners, spa, check ins, answering calls at 5am, setting special loud alarms on your phone to wake you up at 3am to approve a new booking...etc

Well the thing that was alarming was they live in Metro Detroit.

In terms of priority I would make sure that all of the fire code issues are dealt with (smoke / CO alarms, window openings, smoke separation) there's great info on the calgary.ca website for this.

There are several alarming threads on here about the RISK of the note business - jail time and HUGE fines for lack of compliance.

Currently for my primary residence I have a Ring system which works well and provides the basic surveillance that I'd like to have for rental properties; perimeter motion lights with cameras to record parking lot and back alley activities, "check in" on the grounds to ensure the landscapers are actually showing up, no one has graffitied the fence, determine false alarms on a vacant property, etc.

We use the following addenda with all leases:Asbestos DisclosureBed BugsLead-Based Paint DisclosureMold and VentilationSmoke Alarm & CO DetectorPlumbing (how not to clog up your plumbing, resident will be charged if we come to snake a clog and the clog was caused by anything other than toilet paper or organic material)Estimate of costs of certain items they'd get charged for out of their deposit at turnoverPest ControlAppliancesThe following addenda are included with leases on a case-by-case basis:Refinished Surfaces Care & Maintenance InstructionsCondominium/PUD (who the HOA is, whether resident has been provided with a copy of CC&Rs & Rules & Regulations)Fireplace Addendum (decoration-only, clean-burning logs only, gas, etc.)Landscaping (resident responsible to water, owner pays for gardener)Parking (only used if resident pays for an additional parking spot/storage/garage)PetPool/SpaSatellite/DishHardwood Floor Care & MaintenanceLastly, due to the recent legalization of marijuana in CA, we are sending out a Smoking Addendum to all residents specifying that smoking both medical and recreational marijuana are prohibited by the no-smoking clause in our lease agreement, as well as e-cigarettes and vaping devices.