Over the years, we have built quite a network of agents that bring us quality off market properties in the areas that we desire.

CAn some one shed me some lights on how foreigner can invest in Duabi, which firms that I can go through, who are reliable and keep my investment safe and able to get some decent returns, and what are the tax consequences for earning potential from outside the country?

It has to be in the most desirable/expensive areas of the country.

I'm a Project Manager at an Architectural Firm specializing in Custom High-End Homes. 

There is risk in both options & as an investor you need to weigh those risks & stand firm on whatever you decide. 

I was specifically interested in his 2nd plan which was "Building wealth through single-family homes" where he basically says you save enough to buy your first property along with enough for other fees and then you just keep saving the money you make from that property along with some money you save from your job and once you have enough money you buy your next property and then you basically just keep repeating that until you have your desired amount of properties.

It's a spacious 4br 2.5 bath with finished basement in desirable school district in a B Class neighborhood.

I desire to connect with individuals who have had experience investing in real estate while serving in the military on active duty.

I don't invest in section 8 housing and also have no desire to so maybe I am biased.- I live in Raleigh, 10-50 unit complexes will be hard to come by unless you're okay paying a premium.

Your first step is definitely learning about the markets you are interested in and figuring our what your desired end state / goal is that you are hoping to achieve through real estate.