Gain or loss on Condo that kids lived in

I purchased a condo for my daughter that she lived in for 15 years and when it was no longer needed, sold at a loss.  No rent ever charged or contemplated.

I purchased a condo for my son who lived in it for 4 years and when it was no longer needed, sold at a profit.  No rent ever charged or contemplated.

Since these condo's were not my primary residence, I assume they just become personal assets.  No reportable loss on the daughter's condo but I would have to report a capital gain on the son's condo.

Appreciate any observation...of course I'd love to amend and claim a loss to offset any gain but I think it isn't in the cards.

Thanks