All of my Myrtle Beach friends don't rent or only rent to supplement.

As a little background on myself I am a tax consultant by trade (applying for my CPA license in January), and want to build my real estate portfolio that will provide solid cash-flows to supplement my earnings and accelerate my retirement.How do you estimate operating ans capital expenditures on a month-by-month basis to determine NOI?

You could roll it to a self-directed IRA and invest in real estate that way, or maybe do a 72t distribution and have it supplement your mortgage payments to help you accelerate the equity building.

Long term I intend on using real estate as a vehicle to supplement my current income whilst obtaining true financial freedom. 

As for where to invest, I just went with the areas I knew really well- though CA is notoriously expensive to buy, the rental rates make a decent supplement to my income, especially while I stay overseas. 

With all these jobs, I would love to earn some additional income to supplement my FT job so I can quit the PT one.

I've not read it, but wonder if it would supplement our current ideas. 

That way you retain your privacy and still accomplish your goal of supplementing the mortgage with rental income.

Here is an old thread to supplement the one today on leverage.

I would highly recommend starting with areas you know a lIttle more about aa well, using local experts to supplement your knowledge of the area.