I know thIs may seem elementary however no one close to me has done anythIng lIke thIs and I wanna get my Info from a reputIble source vs scannIng through google lInks.

That might mean the first few deals are an unfair split between you (and your efforts) and the investor, however I view that as the cost of getting a reputation built.

There are a lot of good resources here on BIgger Pockets and few other reputable resources as well that go in depth in all these areas.As you pursue the path of a real estate investor, ask yourself questions like do you want to be an active investor or passive investor?  

I'm seeking a referral for a reputable, responsive property manager in Jacksonville, FL.I just bought a 2-unit and would like to buy another 1 to 4-unit prop in the next 2 months.

https://www.barrattassetmanagement.com/I have no affiliation with them but they have a great reputation here in Indy.

We have been active members here on BiggerPockets for the better part of 10 years and have earned a reputation for impeccable integrity and never shying away when we fail to hit our standards. 

In this industry reputation is very important.  4.

Is there a way to know if an online real estate license course is reputable/accredited/accepted? 

What you think you'll save, you will spend in purchasing.Find an honest, reputable builder that will work hand and hand with you and in the end, you'll be a happy man.Luke 14:28  For which of you, desiring to build a tower, does not first sit down and count the cost, whether he has enough to complete it?

But I've been dealing with a reputable real estate agent that is telling me that a cap rate of 5% is not unreasonable...