James McClain He’s not exactly a household name in the vein of, say, Chris Martin or Julia Roberts, but Los Angeles local Damien Sabella is a principal heir to one of Asia’s richest dynasties, a Hong Kong real estate empire worth billions that was recently subjected to a series of elaborate lawsuits — and extensive tabloid chatter — after a bitter power struggle erupted between the family patriarch’s two billionaire daughters.Sabella was raised primarily in the U.S., where his mother has owned