Pilotwhite
There are no aircraft rentals on the Northern occupied side. Larnaka would be the best bet, and you most certainly cannot fly between the two sides, or indeed to mainland Turkey from Cyprus. As CY333 stated - the airport of Ercan (LCEN) is not a legal airport. It is not recognised by ICAO - they even gave themselves the four letter LCEN code without ICAO approval. Even as an alternate, the airport data is not even in the FMS's of our aircraft.
Hope that helps you.
Regards.