A California man is galloping to court after a Dutch horse dealer allegedly saddled him with a $500,000 lemon. Gary Kamins sent his now 25-year-old daughter Gabby, who did competitive horse riding as a child, and her trainer Charmaine Levinson to Europe in August 2021, to pick out a horse for her to ride in competitions, he said in a lawsuit. The pair settled on a $475,000 male horse named Grodino from Alan Waldman, whose Netherlands-based Waldman Horses allowed only a brief medical exam and provided no veterinary records, Kamins claimed in court papers. Alan Waldman allegedly knew the horse had a medical issue before the sale. Alan Waldman/ Facebook But by the time the horse, whose barn name was “Dino,” was transported to the port of Los Angeles and on his way to Levinson’s Pacific Palisades stable, Kamins alleged it was clear something wasn’t right.…