How long is too long for a House to be on the Market?

[Ibrahim Yamini]

I’m asking this question in terms of the buyer.  How long should a house be on the Market before it gives you pause that this is not a good investment?

I recently saw a townhouse in the rich part of my city for under $120K. The area itself is beautiful and the townhouse seems ideal. I've ran the numbers and it should cash flow to my target ROI pretty easily.

The issue is that it’s been on the Market for 66 days.  Any insight as to why it hasn’t sold?