@Austin Merritt I lean toward the hold side. As others have mentioned. Look at the whole picture. The principal paydown, the tax advantages and the depreciation. As others mentioned, there is the cost to sell which can really eat into your equity as all those costs come from your equity but are usually based on the whole value of the property. There is also appreciation which although it can't be counted on also acts on the whole property value not just your equity.
That said, out of state landlording is not something I recommend. In reality, if you are hiring a pm you won't get a true landlord experience. In reality, 90% of the time you can probably do as good a job if you go the DIY route on the PM side as long as you invest time to learn how to do it right. If you don't want to invest the time to learn and are trying to offload it to a PM with the idea that you will learn from them, I'm not sure you will be too happy with the outcome unless you get lucky.
In summary IMO, financially you should keep it. Practically you should sell it. You will invest far more time and effort than you will be rewarded for from just this property. If you plan to use this as a stepping stone, then your time and effort is part of your education and is well worth it.
The good news is if you do keep it you can do a test run for 3 years before you would lose your capital gains exemption.