Many sewer services have cameras that can show you the problem and what type of system you have.Assuming you are on City sewer, after you have the lines cleared, treat the plumbing with an acid treatment--I use CLEAN SHOT--4x per year. 

Bring a decent camera to the property if you have a chance to do a walkthrough.

From those one looked fairly good, well managed on the upswing as a new owner had come in and started remodeling and kicking bad tenants out. 24 unit complexList 565,000Purchase Price 535,000Gross Rent:138,000Less Vacancy(10%) 13,830Operating Income 124,470Property Tax 8,837Insurance: 6,900Management(6% after vacancy): 7,468Maintenance(6%): 8,298CapEx(6%): 8,298Water: 8,400Waste: 2,700Electric: 8,400(laundry room, hot water heaters, security camera's)Cleaning(unit turnover): 1,800Landscaping: 600Operating Expenses : 60,301Net Operating : 64,169Loan Payments(100% financing): 42,369Cashflow:21,80024 units - 16 2bedroom and 8 - 1 bedroom lofts.

I also know that the boardwalk that is being rebuilt and extended to gardners basin will have security cameras covering the boardwalk and the streets leading to it.

Security Cameras?

Pool Renovation $17,302 1) Pools resurfacing for 1 pool at Villa Roof replacements $47,525 1) New Roof for Westers2) Roof improvement for Cumberland to eliminate stagnant water Security Systems $9,458 1) Camera monitoring systems - 16 Channels Signs $10,000 1) Temporary Signage for the property Water Heater replacements $31,314 1) 3-4 Water Heater replacement for the property Grand Total $1,348,741See below pictures to see before and after.

I use smart thermostats and exterior cameras in my VRBO.The honeywell 9000 thermostat is WIFI and color touchscreen.

She is extremely experienced in dealing in representing landlords with tennat issues.Finances, real estate, investing all extremely valuable information to acquire but if you want to survive  our nanny state pro tennat environment learn the system.

Worst case a plumber can send a transmitter equipped camera down the line.

How is any PM going to keep this from happening if the can was out one night.. they would have to have 24 hour surveillance  which maybe that's what landlording is going to come to.be like London... everyone is on camera all the time.