You could always go with a Kwikset rekey deadbolt option, and recycle the keys.

The BRRRR strategy recycles cash quickly and builds a portfolio by buying, rehabming, renting, refinancing, and repeating properties.

Will they likely be recycled into a new STR under new ownership?

Because as a business, you want to milk capital items for as much life as you can ring out of them!

If used tired are in good condition maybe they are worth $1200 retail otherwise if for example the guy gather's a semi truck load they might be worth $50 as a recyclable. 

The industry found better ways to make pop cans aluminum versus metal, recycling became more common and 35 years later, you don't hear about this anymore.

I’m looking for the milk and cookies but can’t find them:( 

You want to milk bonus depreciation and STR loophole, with no intention to operate it as an STR after a brief period.I'm certain that it does go against the intention of the law, as discussed in my post linked  earlier.

If the plumbing and fixtures are what they should be, I've found that 100% recycled TP such as Seventh Generation or Whole Foods brand flushes much more easily than the regular brands.

BRRRR is a great strategy to quickly scale and recycle your capital.