Inspection revealed "notable lean & shifted piers" (CA)

[Kyle Laffey]

New buyer here with an offer on Duplex in Bay Area at a great price but inspection came back with the following:

Notable Lean (click for picture)

"This is the view from the dining room. There is a notable lean, as shown in the photo. We recommended having a structural engineer inspect the foundation for more information."

Shifted Piers (click for picture)

"Several of the support piers in the crawl space have shifted or settled, creating gaps or "out of plumb" conditions. We recommend further review by a licensed contractor and repair as necessary."

What would you estimate this costs? Are these total dealbreakers?

There are some other things such as potential tree/plumbing problems. I know any old rental property will come back with plenty of inspection issues but curious to hear if any of these are dealbreakers for you and if so, why?

Thank you in advance for taking the time!