It all depends on what your long term goals are. Do you want to learn to flip houses as your investment strategy or do you want to Buy and Hold and have consistent cash flow. It all boils down to what you want long term. Flipping could give you a good profit, but you only get it once. I'm no expert, but if you can find a way to make your property stand out above the rest and make at least $100-$200 gross profit at the end of each month then you will have a solid investment. You should shoot to set the rent at 1 to 2 percent of what you owe on the house. (or more if you can)
Plus, if you really want to get into flipping later on, you could theoretically take out some equity from your current property to use for the flip and still have consistent cash flow coming in.
Really work the numbers to make it profitable if you can. If you can't seem to make any decent monthly cash flow however, then you could sell like you said. Just go with the numbers. Good Luck!