@Joshua Briscoe I like both @Tiffany Vogel and @Coury Cast posts for you. Cashflow of 50-100 is not a very strong flow. Call it $100 and you only get $1200 a year if you did the numbers right. All it takes is a hot water tank, furnace, roof, etc and you need years to recover. Granted your cashflow could increase as time goes but so do the expenses. It would take 30-40 years (maybe) to get the 50k you could get from selling now. You also would be gaining equity over that time so it could be a bit shorter depending on the future markets.
You really should run all the numbers and see what makes sense for your situation. I would sell and use the money to possibly find something in Maine. Consider this your initiation into REI! You succeeded! You renovated a property and now you are going to be able to sell it and from the sounds of it at least break even! Instead of a fix and hold you did a flip. Plus you have the experience you gained going through the whole process!
When I started out I used Lowe's and Home Depot to finance my remodels (especially Lowe's, 5% off everything when you use their cards) I never carried any credit card debt, always paying it off each month, but I did take advantage of their 3-48 month same as cash coupons and such. You just have to make sure to never miss a payment otherwise all the deferred interest hits. It was still a little stressful, but I was able to use the income from the remodeled apartments to help pay it off.
Otherwise grats on getting the first project almost finished!
Carl