What additional information do I need to consider in determining if I should sell or hold? 

The Downside on the Duplex is there isn't much value add. It's

Additionally, the property has to be in the same school district as the school you work in

Thanks for the responses @Jeff Kehl @Michael Flight @Joel Owens and @Ronald RohdeAppreciate the additional thoughts/factors to look at regarding VPD numbers Joel.Assuming there isn't someone on the message board who could give me a quick tutorial/instructions on how to find the numbers myself on TXDOT's website, I'll try giving them a call.

I'd say that's a bit on the high end, so I'd get additional quotes.

In this case, would it be wise to get an additional loan to cover the remainder of the property or wait until I am able to save up enough money on my own? 

If additional info is needed please ask.

I am adding an additional room.  

And with the $50,000 from those two houses I'd buy a third house and get $25,000 down with an additional $500 a month cash flow and keep doing those until I ran out of cash.

Free cash flow will be split 50-50 once a yearIf additional funds are needed for cap ex, we each put in 50-50All equity build up will be shared 50-50, including; loan pay down, appreciation at time of eventual sale, and any 'cash out refinances' as we goPMPs original capital investment down payment will be returned to them WITHOUT interest at time of eventual sale or buying out of one partner or the other.