If you can work for free or cheap for an experienced investor or professional and in the process acquire tons of knowledge, you will build the foundation needed to grow in the future.

@Caleb Heimsoth good point, I see the value in doing it on occasion or like you said if it's a property you don't want to hang onto but the people who think they will grow an empire without huge marketing budgets seem to be spinning their wheels while wasting money.I love how @Jay Hinrichs almost always tells them to get a real estate license and be a realtor.

I have spoken with a few people I work with who have had primary residences that they have turned into rentals. 2 of the 3 have had major issues, one to include a marijuana grow in the basement.

You will need more in reserves as you grow though (usually 6 mos PITI for each unit) also, always talk to your lender FIRST before you close on everything.

So, I have no experience whatsoever in real estate investing, but am eager to learn, grow, and take action. 

Hey I am 18 and I just got into real estate,Im studying now to get my real estate license and I’m starting with only $5,000 .But I am afraid to begin without the proper knowledge and guidance .So how do you find a mentor who is willing to teach and help you grow?

Buy and hold is slow growing wealth accumulation. 

My company has been growing, and I'm about to start training for acquisitions.I'm on creativity max-out, and I'd love some guidance as I put together this position and training.

For example, maximizing, preserving, and growing your asset and all that goes with that. 

Also, both sides of my family have real estate experience and I grew up watching them in real estate, but always seek to grow my knowledge.