I agree my mention of legal action is a bit presumptuous, but many people are not aware of the Real Estate laws that may offer them protection in a recent home purchase. I.e. if the previous owner did not disclose a foundation problem and was just passing on the cost to the new owner, if/when discovered.
I also agree it was just one small sample and could be poor workmanship on the freeze board, but if you look closely just in the pic provided there are several indicators that it is more involved, I.e. what appears as different mortar colors indicating repairs in multiple places, several superficial cracks in mortar elsewhere, freeze board gaps, etc.
Either way, I would have a professional come look at it because I am not a foundation expert and I know that bad news does not get better with time.
Also, depending on where you live, there are foundation evaluations that can be had for free depending on the company. I have had several done over my 35+ years of homeownership, and have had many come out and say no issues, or if there were issues I had to pay for the actual detailed report or it was free if I went with that vendor to do the repair.
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