Focus in an area you know well, or one that a trusted team member knows well.  

I am on the support team at BiggerPockets.

I have been teaching Real Estate on and off for several years.  I teach creative       ways to buy and sell property.  I am an expert in Contract law and Real Estate law.I live in Phoenix, and plan to live out my life...

Many investors in your area actually team up and invest in other markets throughout the country where the returns are so much better.

@Alexander Forrester, you will need a "boots on the ground" TEAM who you trust.

Luckily, the post said "we are looking for a highly-motivated and organized individual with interest in real estate to join our team! 

You also need a team.  

I am on the support team.

Some folks are willing to partner with newbies - it's all about relationship building and building your team.

You are right Drew eventually I am going to find an agent , loan officer, and handyman , so that I can develop a team of people to accomplish my goal,and I only have one goal and that is to purchase a 4unit property before I retire within a year or two, Thanks guys for your response..