Now, if you haven't yet, now is the time for you to go see the situation in person.  

But I strongly urge anyone to always get Aldermanic support before proceeding because it makes life--and the entire project / process--a whole lot easier. :)IN SUM: Based on what you've shared, it sounds like you won't need to rezone if you just want to build a duplex.

Personally I wouldn't feel comfortable trying to wholesale a relatives $1M home knowing that I am breaking the law if I cross over into doing anything that can be considered representing them in the transaction, and knowing it will only be marketed to people who buy properties wholesale (typically investors who don't want to pay retail prices), instead of the majority of retail buyers active in the market who are typcially willing to pay more. 

H there, I'm a certified international property specialist and while i don't personally specialize n Costa Rica,  have several colleagues who do.  

Think basic, durable furniture that looks good but can withstand college life.4.

Average person can't visualize how to fix it, but you can (create an extra bedroom for example)3.

While they only took up a word or two of this story, they took up months and years of my life for which I earned nothing and lost much, at least in the short-term.

I personally would not invest in detroit as historically its not a appreciating market and for cash flow and I invest primarily for appreciation - I go off the location location location mantra. 

One-person rental units are in the highest demand, and co-living directly appeals to this market.

A contract is only as good as the person enforcing it.