She slapped a hotel valet employee while she was drunk and got arrested
Later it came out that a Nike rep showed up to the hotel the next day (on Lebron's behalf) and offered the valet employee a $250,000 check, if he was willing to drop any potential charges. Valet had already hired a greedy lawyer and declined the offer, thinking he could sue and make way more than that. Then when hotel management reviewed footage of the incident, they saw that the valet employee actually pushed Lebron's mom first and she slapped him in retaliation. The hotel fired him and he didn't get a penny from the incident