Hiring RV New York at 19?

Most companies won't rent a vehicle to anyone under 21. Complicating matters is the fact that you're from overseas, meaning they would have trouble tracking you down if there was damage to the vehicle.

Also, not that many companies rent RVs--the typical rental vehicle is a car or a small van.

Your only chance is to deal with a local company that's willing to be more flexible. Expect that you'll have to leave a large deposit and an active credit card.