If you know a city, and you see the march of development or gentrification, you can probably predict what's coming up and what's hit the ceiling.

Needs complete rehab ceiling is showing mold in living room and room kitchen cabinets has to be more updated flooring needs redone painting outside and in bathroom needs to be updated the property value is estimated 401k highest 437,090 rent in area I seen 2600 lowest highest being 2750 a contractor roughly estimated told me I’m looking at 134k

You can build up goodwill sending grocery cards at Christmas, having a mini fridge to rush over the moment there is a problem, giving rent credits, etc. and it will mean LESS THAN ZERO as soon as you have a late fee you expect them to pay, a pet that you cannot approve, anytime the rent goes up, telling them they can't paint the walls and ceiling the color they want... then you are the scumbag landlord.

Tile floors, tile backsplash, tile tub surrounds to ceiling.  

Key is to understand all the aspects of the ARM-Is there ceiling or floor?

There are lockable thermostats for commercial use, but I can't see that working in a rental.I think the main issue will always be that any thermostat that you can set a minimum temperature in will always be susceptible to this fail safe failing, due to the possibility the tenant could change it on purpose or on accident.I'd hope in a 4 plex as long as there is no building defect to the thermal envelope that it would be difficult for one units pipes to freeze as long as the other units were occupied, seeing as they share some common walls/ceilings.

We leave a quarter width gap in the back so that if the wax ring ever fails we know immediately from water seeping around the back of the base instead of through the ceiling below.It's rare, but sometimes we get called back for a sewer odor.

The water damage stretches from the header above a sliding balcony door all the way down the drywall on both sides of the sliding door and even to the abutting kitchen’s drop ceiling.

The home is nicer  than most older mobile homes and has tons of storage in the 6 feet of ceiling pitch and to save on pluming all of the water lines and vents are within 5 feet of each other.

I spent $33,836 renovating this unit.Here's the breakdown:-Quartz Countertops: $3,500-Heat Pump System: $5,500-SS Appliances: $1,773-LVP 20 MIL Flooring: $4,406-White Shaker Cabinets: $4,000-Washer & Dyer: $400-Bathroom accessories, ceiling fans, black matte fixtures, toilets, light fixtures, faucets, etc. : $2,347-Paint, all new doors, plumbing fixtures, drywall work, garbage disposal, carpet, bathtub: $3,934-Labor: $7,976The previous owner did not do any updates to this unit for the last 25 years!