Find the most durable floor covering out there and stick with that.

These are commonly referred to as C classOrder a third-party property inspectionMake sure the property has been rehabbed to turnkey quality that will maximize your cash flow (roof and HVAC updated, ceramic tile it kitchen and bath, vinyl plank hardwood in high traffics areas, durable carpet installed in bedrooms, external fences and buildings addressed during the rehab, supply hoses replaced under the sinks, etc) otherwise your cash flow will go to maintenanceBe skeptical of the one-year tenant warranty, that just means the turnkey provider is making a abnormally large profit who uses gimmick marketing to secure investorsVerify rent range through other property managers, Craig's list and ZillowAsk if permits were pulled during the rehabIf a tenant is in place, ask to see the tenant fileRemember, you can fix the house, you can fix the tenant, you can fix the property manager, but you can't fix the area.  

We were thinking about installing American flags, but after reading @Brandon Ingegneri post above, I think a star, or some version representing American flag, will be more durable and secure, especially during a NE storm.

It's not for everyone, but you can get a nice look with a durable finish.  

I love the look and durability of vinyl but am worried about sound transfer to the lower units.

I always replace carpet with more durable flooring.  

Model it like theirs plus a touch nicer and more durable if possible.  

But if it's high with a lot of hips and valleys, spending more for a more durable, easier to maintain roof may be cheap(er) insurance against costly and difficult repairs in the future.

For you and the construction you're detailing, that's probably veneer plaster over blueboard (but of course there's an outside chance it's something I'm not familiar with).You can bust that out and put in a drywall ceiling, if you want to go that far...at least, that's what I would do, because that would be the most durable option.

.- Basic pots & pans for cooking- Coffee maker and filters- Salt & Pepper- Utensils, plates, bowls, cups and glasses, coffee mugs (pyrex is inexpensive and durable)- Cooking utensils like large spoons, spatula and basic cooking knives.- Paper products such as toilet paper, a bag of paper napkins, 1 paper towel roll to start them off.