My home is technically considered a SFR not a duplex.  

So, I'm looking to invest in other markets and trying to focus on one or two so that I can build knowledge over time, but narrowing it down is a challenge. 

These types of properties require experienced management to navigate the challenges effectively.

.- The TL states that those are technically the team's leads and I will owe the 20% if they convert within the year since I was given training (which I was not), lender referal (which was forced on me by the TL even though I work with my own lenders for my clients).Is the above statement true/legal/valid?

The challenge with S8 in this scenario is you always have a piano over your head and all a tenant has to do is call the code office to create an issue for you. 

Holding is currently challenging. 

The challenge for a PMC is having the time to answer all your HUNDREDS of questions and handholding you as you learn, while still making money.

What pitfalls or challenges should I be aware of when scaling up quickly?

Today we have 540 units in a few states and things are not without challenges. 

Huntsville is a challenging market given the price points but I've had clients find good success in the suburbs.