It's your property, your decision.
But you will be in negative cash flow and frankly holding out to possibly break even is probably not in the cards.
Obviously you are not yet prepared to give up the $40,000 value drop or the mortgage money, taxes, condo fees, insurance you have now been paying for 4 years (about another $40,000) but the day will come.
Try to remember, as the heading of this thread indicates, you asked our opinion and one option you yourself presented was to sell. We are not being negative we are providing the reasoning to support that option. Others on here that advocate holding properties as rentals do so from the perspective of those in the business. They will often hold at a loss allowing other properties to support that negative cash flow. You are not in that enviable position as you are not a investor in income properties.