You have to adapt to the new era of higher cost of capital, lower supply, population changes, natural disasters, etc.  

I enjoyed what I did building cool bridges and hotels, but I was not too fond of the daily in and our grind.Jumping ship has brought bigger challenges, but I am happier tackling them with people I love working with.With respect to real estate & being a landlord, it's honestly something I do NOT ENJOY that much either (dealing with HOAs, repairs, vacancy, etc.)...unless you can buy properties and completely offload the property management, which was and is hard for me to do with my scarcity mindset. 

I don't know the CO law.A duplex by nature is multi-family.

The truth is that any data or track record can be interpreted in multiple ways, and each sponsor will naturally present their results in the best possible light.

Challenges?

Of course as nature of things the community of investors in my area that are investing in the US is small and no united network of investors exists.Couple of days back a large conference of investors took place and I mingled with everybody and handed out business cards and managed to assemble 20+- investors to open a REIA. 

Challenges?

Are there any unique challenges or opportunities?

Florida is a challenging state so I would highly suggest working with a broker familiar financing deals in this area.

True 1% rule properties are becoming increasingly rare and often come with management challenges, typically found in markets with lower appreciation potential.