The professionals listed have additional training and ethic standards that set them a part, however it is important to conduct your own research and properly vet a few property managements before making your decision. 

If a management company has unlicensed Leasing Agents and/or Assistant Managers for at least 2 years without any training and then gets them a leasing license does that cover the time they operated without a license?

This slogan merely means you can put down ZERO and the Investment will be NEGATIVE but if you buy it without financing it, you will Cash Flow.You make the Investment Cash Flow.Also, Cash Flow can be a distraction from much bigger problems.Buying a Property that you cash flow in a DEPRECIATING Local Market is a set up for failure.Take Detroit during the decades before it went bankrupt.You may have bought a Cash Flowing property decades before, but the writing on the wall was that Detroit was going to depreciate when the Domestic Auto Industry was a decades long slow train wreck.Detroit, at that time, was 90% dependent on Domestic Auto.There are 2 rules that I follow:1) ALWAYS buy in Appreciating Markets with a horizon of at least 10 years2) You (notice, I said YOU) SHOULD Make the Investment at least break even if not some positive cash flowIf you are in an Appreciating Market, your Cash Flow will grow.For instance, I am in Brooklyn, NY and my first investment was in 1998.My rents went up over 350% (from $1k for a typical 2 Bedroom apt to $3.5k today) over the 26 years.Not only do I cash flow from the Rental Price Appreciation but soon my Mortgage will be paid off by the tenants.The Cash flow will be HUUUGE in about 2 years from now.Many Investors here seem to not understand that Appreciation is BOTH the Investment's Value and the Rental Price Appreciation.

They will even allow you to use your credits for them to train or teach their system to an accountant that you choose to bring in which is what I initially planned on doing.

I understand that investing requires some level of risk, but I've heard horror stories, and I REALLY don't want to make any stupid mistakes that will send me to the poor house.Because I don't yet have any experience, I'm wondering if I should invest in some kind of training program?

It does not require formal education, training, or a degree.

Complete hands-on training and experience. 

FlipSystem is more than online training and mentorship.

I find it rather impersonal, and basically trains new consumers to see agents as just doorpeople, and the advice/transaction is done through a national call center.

The team has been quick to help with my questions, and the program offers a coach/mentor, extensive training materials, software, and more.