Vertical crack in the foundation- how big a deal is this?

[Lee Lewis]

Investigating a property in the mountains for a househack deal, and in the disclosures we found a vertical crack in the foundation. I remember on the BP podcast hearing someone advise just stay away from any cracks in the foundation (automatic pass). However, reading on the internet, it seems like vertical cracks are very common and most homes have 1-3 after a few years post-construction (T/F?). WHAT DO YOU THINK, and what follow up questions and inquiries need to be investigated?