But more importantly, I think, are you willing to do the commercial real estate marathon and dedicate the time, energy and attention to get educated and proficient in this space? 

No one can predict equity growth accurately, but if you're proficient at understanding real estate market cycles you can probably do okay, but this isn't for beginners that don't already have capital and steady cash flow.

I would consider an agent with 25 deals a year proficient, more than 50 very strong and 100+ is an absolute outlier.

Thanks, @Eamonn McElroy for the info, and the proficient scolding.

If your CPA specializes in expats, I'd expect him to be proficient in it.5.

About 25 deal per year is proficient.

The truth is, if you aren't doing at least 10 deals a year, you can't be proficient and you'll be leaving money and deals on the table.

That doesn't mean you personally have to have the experience, but someone on your team will need to demonstrate a high level of proficiency that would make investors comfortable. 

I am also beginning my search for a tax planner/preparer who is proficient in rental properties. 

Become proficient in finding and putting together deals4.