I'd go with nice, durable countertops and see what is left to redo the bathroom.

Maybe Tenant Durable but nothing is human proof unless you built a caveman style house made of concrete with no utilities.

Obviously, the thicker it is the more durable it will be.

This can sometimes be assigned by a durable power of attorney for the buyer to act for the owner, you know, the owner is out of town and I'm the resident.Now, in a fix and flip, a landlords policy can cover small jobs,  probably not materials or tools left there, but liability for the electrician getting bit my your poodle. 

All,Looking to replace cabinets in a rental unit, need something durable, long lasting, modern. 

So with our approach, we need to balance both what will be attractive to sell and what would also be durable, lower maintenance for rental.

The locks we supply for all our rental properties is an Igloo Deadbolt 2E.https://www.iglooworks.co/en-U...Its sleek, durable and can generate multiple pins for contractors and such. 

It looks great and it's very durable.

Tile is durable and cleans up nicely. 

There are a few things that are different than a few of you rather forcefully suggest.1) The finance company with the 4Plex is already offerring 6.5 % financing ( not 8%) and my friend who did go for the deal has already closed on that. 2)I was assuming 40% because the building is brand new and they even changed some of the building materials for investors because we wanted stronger more durable products with better warranties. 3)Also these equations don't take into account that rents over the next 20 years will be going up probably at least to $800.