For illustration purposes, what are the benefits of acquiring 100 units if they are located in a C/D market with terrible fundamentals and no reasonable expectation they will appreciate?

That might not be a lot, but as market rent and appreciation comes up good in 3-5 years, these properties will look like home runs.

If you have enough market data to support your income projections you should be good to go.Lenders don't like Airbnb's much though so maybe you can pitch it to them as a rental?

@Kevin TurciosJoin local real estate clubs, attend meetups and events, explore online networks, connect with local realtors, analyze the market, and consider finding a mentor.

The host, Mike Jake, owned up to 150 SFH's in Colorado Springs at one point and grew his business from scratch by finding off-market opportunities and implementing several creative financing strategies. 

I'm looking at home equity loans for another rental property we own currently.More than likely, we'll have to put the property back on the market and find some cash to cover the difference between current construction draws and sale price.It's an expensive mistake - but we'll be back again to fight another day. 

prior to rent control, I got rid of my poor tenants by raising their rents above market rent.  

There are no laws, rules or regulations preventing any foreigner, American or otherwise, to buy property in CDMX or Mexico for that matter.If, by having success, you mean getting a profitable investment, I'm sure many American and other investors got that over the last few years (I personally haven't since I've focused my efforts on Mexico's beach markets, which are far better in my opinion.

3 quality tenants in place paying just shy of fair market value. 1 vacant turnkey unit. 

Hey Allen, welcome, I am both an investor (mainly LTR) and realtor so I can give you a couple of tips if needed, especially within the Broward area.