Anyone work in the mortgage industry?

Currently me, my significant other, and 2 kids live in a small 2 bedroom condo with a undeveloped basement. Well one of the condos down the street in the same complex we currently live in just went up for sale. It has 3 bedrooms and a developed basement. It would honestly be so perfect for us. My boyfriend would be a first time buyer as the place we are currently in is mine. My credit card debt is pretty high tho. I’m not sure what his finances are like but I know they are better than mine. I’m also on maternity leave. First of all would it be possible to port our mortgage? And second would we qualify? The place we are looking at is $259,000. We also live in Canada, Alberta if that helps.