For example:  We use our internal property management data to project out % and line items for up to 30 years. 

There's a great YouTube channel Harborside Partners who puts out content solely for international RE investors.

When I got started a decade ago with my first rental I jumped in with both feet and figured out what I was doing by LEARNING continuously, a skill that I feel is the most important facet of success in real estate...you have to know city code, pending and present legislation and tenant law, what tenants desire and how to cut through the BS that will inevitably be throw your way, also build your internal compass of green light / red light which tells you when to get a purchase agreement written up or turn down that tenant application who simply has to move within the next 48 hours.

I feel we need a CPA to partner with who understands international real estate so we can employ the right strategies and have the correct documentation in order.

Or perhaps they used interns to model the impact of depreciation recapture on syndications, and strategies to minimize/avoid the impact of depreciation recapture on taxes (without dying)?

He claimed he cleaned up after one engineering intern who spilled food in her room (maybe?

In the end, when done properly, no one will know it is a Google Voice number.Side notes: If you are an international traveler, there is no better tool.

Learn how to calculate your IRR, your Cash Throw off, your Return on Equity, your Return on Asset and how to evaluate these against your own goals.Learning what your individual needs/limits are will give you a real internal support system when you approach an investment scenario - you'll gain confidence and then you will be able to see the wood for the trees.

How do you do your marketing and what percentage of your deals come from your internal marketing?

Chris,  Read Atomic Habits by James Clear!