I did a little googling to find some data to back up my sense that Halifax and much of Canada is in a real estate bubble.
All the images are from http://theeconomicanalyst.com/.
Note how out-of-whack Canada's Price/Rent ratio is compared to other countries. Not sure what year they used as their =100 baseline, but the takeaway for me is the country to country comparison.
Here Canadian Teranet data (similar to the US Case-Shiller index using matched-pair sales of single family homes) shows house prices have risen at a much faster rate than Canadian per-capita GDP, per-capita income, rents, or inflation. Looks frothy to me.
Same chart but for the Halifax real estate market. Halifax may not be as bad as Vancouver but there's certainly some carbonation in Halifax.
Halifax incomes haven't kept pace with home prices.
While these are all based on single family homes, it can't be much different for small apartment buildings based on your description, Nick.
So if it were me, I'd sell. There are a number of markets in the US that have already corrected. Some in my opinion have over-corrected. If you're familiar with the 2% rule (monthly rent >= 2% of asset value) you'll know that you aren't getting that now. You can get that in many parts of the US. For example, you can buy houses all day long in the metro-Detroit market that will meet or exceed that hurdle rate. Purchase + rehab = $50K and rent is $1000+/month. Not war zones, but nice low-to-moderate income suburbs. 3 bedroom 1.5 bath brick ranches and bungalows. Or you could do flips or do private lending to investors, but I'd be wary about doing it in Canada given the high valuations. Too many investors got caught with flips or loan collateral that rapidly decreased in value during our RE crash.