Very durable and extremely easy to install.

I also hate the way that sunken in windows look, mainly because it just screams at me that it wasn't done right.I have had good luck with vinyl siding as far as durability goes.

Assuming that it was installed correctly, it is a durable and low maintenance exterior.

I trust you are replacing carpet with a more durable finish floor?

What do renters want and what is durable?

I was kind of kidding, just naming the most durable paint I could think of.

Some sort of solid surface is more durable then laminate but it depends on the competition and rental pool.  

If you really want to do that maybe add additional baseboard heaters on the lowest finished level.Furnaces in my opinion are a lot more durable and have a longer life than ac and especially since the old freon is so expensive these days. 

The new one will take 6 to 8 months to build, then I have to put tenants into it...but it will be brand new and I can choose the most durable materials to put inside from the start. 

For these deals, I would only consider new or almost new multi sections that have full drywall and a number of upgrades that relate to the durability of the home.As a land lease community owner, my preference is for multi sectional homes for a buy and hold strategy.