Thus it's often more profitable to find long-term tenant than squeezing out every rental dollar you can. - RentReady repairs & vacancies between tenants can blow any projected ROIs.2) Warren Buffet - go where others aren't.

Is the time spent learning real estate and finding deals more profitable elsewhere?

Even now there already starting to call out for private and non-profit sector to, yet again, clean up and solve everything Big Gov botched, yet again. 

The rates will be lower and will allow you to maximize profits.

The margins are tight which increases risk.

Often times you will pay much more in taxes than if you pulled the money out, paid the taxes and penalty and then started investing in real estate.For example, with the financing you mentioned, the IRA must pay taxes on the portion of the profit earned by financing. 

.: I am trying to learn and understand... someone told me that its not just size of the home or level of the flip that determines profit, and that in some markets, what is considered a typical profit is 300k based on the 70% ARV formula.

How can I strike a deal where they can still receive some income from the property, but I can purchase the home and make my share and eventually (1-2 years away) own the home and eventually get full profit from this 8-unit property.

By saying that you want to sell in Costa Rica to reinvest in the US, you are signaling that investing in the US is more profitable than in Costa Rica.

Despite paying fees, doing a deal and making some profit is better than sitting on the sidelines.