Spray foam insulation to the attic.

Let's see here....1) A few weeks prior to tenant move-out I send them a cleaning checklist as well as the two pages they signed listing damage and cleaning fees2) I use the same paint colors in all my properties.3) My Clean Magic Erasers are amazing and will remove wall scuffs and random stains. 4) When buying larger items I utilize the Lowe's 10% off trick (spending .99 on eBay to buy a Lowe's 10% off digital coupon and using the code online or in store - this hack has literally saved me thousands).5) At my multi-family properties I include various items near my coin-op washer and dryer: a laundry  table for folding, a roll of paper towels and a bottle of cleaner so the machines can be wiped off; I also include some laundry-related items such as stain remover, starch spray, etc (I buy it from Dollar Tree and it lasts a while - I think the tenants appreciate the gesture). 6) At the Dollar Tree they have a toilet cleaning gel product called Lime-A-Way.

Had a millennial from a 3 family telling me about how the neighbor kids where always playing in the sprinklers and spraying the hose.

Cleaning the affected area and spraying it should be enough.

It's when they are not neutered that the male cats spray that disgusting whatever-it-is all over the place.We also mention new pets and visitors pets and fines for each.  

You just tell them that it's always been that way, so they need to be careful, so they aren't charged for damage to the drawer if they aren't careful.As far as cockroaches - it's a good idea to pay for a contract that provides monthly spraying for everything.  

But, a mowed lawn isn't going to make up for a house full of cat spray, believe me.  

For animal urine smells, I recommend one of the enzyme based sprays, such as Rug Doctor Platinum Urine Eliminator.

Spray bleach is a great solution to this "noisy fan".

Remove popcorn ceiling, paint walls and ceilings flat whiteRecessed lighting throughout Central air with a rooftop package unit and over-the-roof ductingNew cabinet over the stove with a microwave vent hoodDishwasherShower enclosures (currently just has shower curtains)New white vinyl windows (remove and dispose of the existing window covering),Bead-blast the front screen door and spray-paint white (or just replace)Replace the few remaining original painted cabinet doors Switch to new Decora outlets and switches Basic handyman work like recaulking the bathtubs Thank you for the help and looking forward to hearing about your experiences.Best,Kevin