I did not work on this matter, but a friend of mine advised on a $80M+ asset transaction. There were no culture integration concerns because they were merely buying the assets and would not continue to employ any of the workers.
However, it turned out that the party they were buying the assets from had fraudulently transferred them from another company. It resulted in a major lawsuit against the seller, buyer and advisory firm. It was a major legal DD misstep that could have been easily avoided by looking at the seller’s founding documents.