Another strategy I've successfully used is rather than one huge rent increase (you're talking over twice their current rents) is doing a step system so each year increases a $1.50/sqft up to market so the businesses can absorb the overhead costs better over say a 3 year period. 

So let's say you have an orphan night and you have a promotion on Airbnb for those (let's say a 15% discount).

Going back to the same interest rate question, if you cash out at 8% and just invest the proceeds into something cash equivalent - let's say a CD - at 5%, the only thing that needs to happen is your rent covers the delta.

How much out of pocket money would i need to purcahse lets say a $200k property?

Depending on what's happening in your local market, appreciation could contract if say a major employer moves out or goes out of business.  

Ballpark I would say a flipper, looking for a $25,000 profit would need to buy at a maximum $465,000 - maybe lower. 

I think one thing that you could have done if you didn't already was to ask for several references of investors who've worked with this company and had both good and (if they give it to you) bad experiences over a longer period of time, say a few years.Can you PM me with the name of this turnkey company? 

So, a building could easily sit vacant for a long time before a business tenant comes along.That said, I wouldn't mind a mixed-use building in my rental portfolio with, say, a specialty grocery store on the ground-level and apartments above.

without my having to say a single word!

When i say a hoarder house I mean a house with at least 4 feet of trash from the floor throughout the whole house.