She does not sound like someone you want to keep long term. 

Looking to do a complete gut, new roof etc.

Needs to be part of the complete transaction, otherwise you are encouraging the buyer to potentially commit loan fraud....and they should not want to do that, and if you are licensed you don't want them to do that...and even if you are not licensed, you don't want them to do that. 

This sounds like a good plan - sticking to the duplex or SFH for students is good too since most DSCR Lenders generally stay away from "student housing" but if you are looking to purchase a rental property that can easily be utilized to rent to any tenant (adult, family etc) including students, you should be OK

Hi all, I am a completely newbie here.

It sounds like you both have educated yourselves properly, which is great hear!  

I k ow that anything that sounds tempting has a catch in it, so I was wondering if there's anyone here who has experience with renting his / her properties to traveling nurses, that can share the experience or just the bottom line - if it's worth it or not ?

With a few affordable units to get the density bonus, we're in Complete Communities Tier 2 with a FAR of 8.0, so you could go up multiple stories. 

So it sounds like you are setting aside some funds.

Therefore, it seems this would be specific to the assets you have in your property.So a one size fits all percentage would be impossible to come up with.If people could put a percentage for the bonus depreciation there would be no need to complete the cost seg study.