A Melbourne real estate agent is facing life in jail after he admitted turning rental properties into cannabis growing houses as part of a large commercial drug trafficking operation.

Prosecutors say Loc Tran, 39, was the “CEO” of a syndicate that cultivated 1255 cannabis plants in properties across Victoria between July 2014 and January 2015. He had been approached to take part in the enterprise because his role in real estate gave him access to houses and commercial sites,…