I need help with a purchase of fraud consumer case 35k I put in downpayment but they put me on a lease

I bought a car with a price of 62,694.75, a Down payment of 35,000.00 cash in 2 years of payments of 18,716.4 we paid already 53,716.4 but a few days ago we found out that we are on a lease and we financed the car but they make lease. My mother doesn't know English but she is the buyer and they put her to sign and told her that is a finance Hyundai said to pay off the we need to pay an extra of 39,000.00 to paid off that which would be a total of 92,716.4 for a Hyundai Santa Fe 2023. The dealership said in our face just get a lawyer cause you signed the documents on a lease agreement also the dealer offered her money to my mother an amount of 13,000 so for her to keep the money and leave and not report this case we need help. we will loose 53,716 dollars in 2 years.