I keep leases in a filing cabinet. 

I would provide the vanity, bathroom tub and shower, kitchen cabinet, flooring, and all the hard wares.

I acquired the four-plex with varied levels of updates, but would need/want to paint cabinets, paint doors, trim, walls; if carpeted, replace carpet with LVP; replace faucets with modern faucets, etc.

No carpet, disposals, only put up curtain rods, hard flooring only, use durable materials, always have cabinet pulls

A big trick is to do cosmetic updates to max out the rents, for example most deals I sell we raise rents a good 30-100% after paint, new counters, new flooring, paint/replace cabinets.

It's a real problem and can only imagine the number of investors out there who are operating their businesses recklessly under the false beliefs of protections of an LLC created and stored away in file cabinet. 

Additionally, I have access to cabinets, doors, and other materials through trades with a friend and uncle who own 100+ doors between them, but still budgeted funds for replacements if they can't offer some. 

There were hardly any cabinets and a door had been busted open where someone broke into the house due to it sitting vacant for so long.They apologized for the lack of communication and assured it would be better but I have had no calls or emails returned again.  

Really nice backsplash, nice cabinets nice handle bars, but you didn't at least match the dishwasher with the other appliances (black versus stainless steel) and you use granite countertops?

Dimensions and layouts on these are mostly standardized so you shouldnt have any problem unless the existing cabinets are custom built for the space.