There was also some minor damage: handful of nail holes in every room, their cat scratched up some of the trim, a bunch of dings/gouges around the doorways and in the bedrooms, marker stains on the bedroom wall.More significant damages: The tenant put glow stars up in the kids bedroom.

Woodwork, trim and cabinets get either a deep cleaning or are changed out.

The unit that is not updated, I've already done significant upgrades like flooring, new trim, doors, appliances and current tenant accepted my increase to $850/MO.

I have tried using a plastic trim piece between. the cabinets and the floor to keep them from contact smaller spills and leaks on the floor.

It Depends.Potentially capital investments in the properties could have accelerated depreciation benefits (carpet, LVT, trim, appliances), while also allowing you to drive higher rents, thus saving on some taxes in the short run while driving increased values. 

Even if the said Reno’s are as small as a few pieces of trim and some missing soffit? 

A lot of sellers overlook this simple step of trimming the shrubs and trees away from the home.

If a house does have some rotten wood ( siding and trim around the windows and or doors , missing an appliance or two ( say there's no stove or dishwasher ) ......

Then final trim and inspect. 

Meanwhile you can do exterior, trim trees, remove shrubs, roofing first, then lawn and landscape so it has time to grow in, driveway if you need a new one last.