CAN SOME ONE COME ON A TOURIST VISA FROM JAMAICA TO USA AND GET MARRIED AND STAY IN USA IF THE MARRIAGE IS LEG?

MY FREIND SAYS SHE ONCE LIVED IN JACKSONVILLE FLA. BUT WENT BACK TO JAMAICA AFTER 3 OR 4 MONTHS. NOW SHE WANTS TO COME TO GEORGIA SO WE CAN GET MARRIED. BUT TO GET BACK IN THE USA SHE SAID SHE HAS TO PAY 95 DOLLARS FOR MEDICALS AND 300 DOLLARS FOR IMMIGRATION PAPERS AND WHEN SHE BOOKS A FLIGHT TO COME HERE THE FLIGHT IS A LITTLE OVER TWO WEEKS AWAY. IS SHE TELLING THE TRUTH ABOUT WHAT SHE HAS TO PAY. AND WHY IS IT THAT THE ONLY FLIGHT SHE CAN GET IS TWO WEEKS AWAY. IS IT REALLY LIKE THAT TO COME FROM JAMAICA TO USA . OR CAN SHE GET A TOURIST VISA AND COME AND GET MARRIED AND STAY HERE WITH ME. OR IS SHE JUST LIEING ALL TOGEATHER.