Wood frame Condo.. 37 years old

[Stanley Kong]

Hey everyone, 

Haven't posted here in awhile. Just want some insight from the community here on older wood-frame condos. If I do my due diligence on the property and check for the basics (leaks, piping etc.) and it all checks out; what is the typical age a wood frame condo would last? 

Heres the story...

Looking to purchase something to rent out for 15 years, and then have my retired mother live there afterwards.