Cash flow is zero, maybe a tiny bit positive if nothing breaks and no vacancy and no surprises with co-property repairs. In return for zero cash flow you get the risks and headaches of being a landlord, and perhaps several thousand dollars of increase value from the structure change and neighborhood development. But I think these bets are speculative at best, may not materialize, may also negatively impact you (e.g. lots of new supply hitting the market).
Also, assuming the condo has had good appreciation since purchase, converting it to a rental will reduce your home sale exclusion and/or result in depreciation clawbacks when you sell. Depending on how long you've owned it, this could mean many thousands of dollars in increased taxes.
If you've lived there more than 2 of the past 5 years and the condo has appreciated a lot, then I would sell and pocket the cap gains free of taxes.
[This assumes you're in the US whereas you may be in Canada? I think Canada has something similar, a "principal residence exemption," so check your laws to see how renting for a year affects your tax situation.]