Teroc.
The CAA website says the following,
"a cross country flight of at least 540 km (300 nm) in the course of which full stop landings at two aerodromes different from the aerodrome of departure shall be made"
no mention of minimum leg distances and no mention of returning to your departure aerodrome. it is on page 6 or 7 of the requirements for issuing a CPL.
canīt find anything anywhere else about it,so N.Y. to Orlando should be O.K.