I'm guessing/hoping it's a combination of my screening, having a nicer than average unit and being responsive and respectful With the tenants.  

(They both shrink your pool or buyers and combining them really shrinks the pool.)Assuming you don’t plan to do a 1031 exchange you’ll also pay higher taxes if you can’t spread them over two calendar years, but not much. 

This new property is pumping out around a 10.5-11% cap currently.My credit score is not great as it sits, hovering around a 650 but slowly increasing as i'm paying off debt.

It should be as easy as converting one conventional loan that cashflows well to a Debt Service Coverage Ratio loan or DSCR.

The greatest profits are in properties that can be repositioned to a higher and better use, or appreciate the highest over time, or will throw off a TRUE cash flow of 20% per annum on total investment (cash + debt + capital investment). 

Instead we got some smooth sales dude who had hit rock bottom and is now "rich" because he took on debt to do a RIch Dad program years ago.

I use a combination of their messaging tool and direct messages/calling.

I have a friend who owns 10 or so units near here so we are thinking of spliting some of the cost and combining all the units together.

But like he said, f something goes wrong with ANY of the properties you have debt on, you might be in a pickle.

They got fundamentally sound real estate, with matching debt (10+ yr fixed rate) and budgets with the intent to hold nearly forever.