UK Immigration Law
Have UK Immigration Law Questions? Get Answers Now.
Thanks for asking for me.
With regard to your questions:
1. Correct, the holder of a YMS visa must leave the UK at the end of the visa period.
2. A new visa application can be made from outside the UK at any time. If approved the new visa replaces the old visa and the old visa becomes invalid.
3. They are allowed to leave and come back to the UK as often as they want.