Last thing to look at (and right out of the pages of our client's own experiences) might be starting a transition of wealth in the form of using 1031 strategically to purchase property that your heirs live in until you pass and they inherit. 

Hey @Joshua Houchins, we use QuickBooks Online exclusively for all of our REI Clients.

My partner is based out of Dallas and a lot of our clients are from the surrounding areas.

One of my clients picked up a duplex in Albany Park last year, and the rental income not only covered the mortgage but also gave him extra cash for daycare expenses.

We invest in 38109 on a limited basis when a client requests properties in the area, but further north and east.

That is the biggest challenge I have with my clients.

Understand entity structuring and what is best for you, especially if you are going to do flips.This post does not create a CPA-Client relationship.

The accountant offices focused on international clients will offer the possibility to register your SL at their address for a compensation (yearly or monthly).Regarding these other services, like mail handling, phone assistance, etc., I would advise you to try to manage it yourself to slowly understand the Spanish system.

At our firm (tax advisory) we are offering a service to help clients with this and we expect many tax/cpa/law firms will as well. 

While I don't actively work with commercial deals I work with our commercial broker in our office to connect my clients.