I purchase a single family rental property to do short term rentals with, the property was purchased for 69K. I bought the property with owner financing.  The rental needed a lot of work, I installed central air/heat replaced the water and gas lines and put new windows in the house. The first month I put it on the market I was able to make a profit after covering the mortgage and utilities.  All together I put 19k into the house, my question is how long do I need to hold the property before I look to refinance it?