When to turn flip into a rental

[Kwame Darko]

How long would you typically wait for a flip to sell before deciding to potentially refinance and keep it as a rental. Listed a flip in early December and although it has received some attention (atleast 1 showing a week) there has been just 1 low ball offer. The house has been remodeled pretty well with an open concept, granite counter tops etc. I know that the time of year was not the best so that maybe a factor as well. It will cash flow about $100-$150 A month.