'Shahs of Sunset' Star Reza Farahan -- I Sold Ziggy Marley a $1.1 Million Joint

"Shahs of Sunset" real estate guru Reza Farahan is a bona fide expert on living the high life ... so when Ziggy Marley -- Bob Marley's son -- wanted to snag a primo joint in L.A. ... he knew exactly where to turn.

That's right ... with Reza's help, the Reggae singer scored a brand new crib for $1.1 million!!!

FYI -- Reza's a real estate agent in real life ... in case that wasn't clear.

We're told Ziggy bought the 2,613-square-foot house as an investment property. It's actually two pads attached together -- a duplex -- each with 2 bedrooms and 1 bath.

It's a pretty rare find ... the place dates back to the 1920's and hasn't been on the market in over 4 decades. Plus, it's rocking hardwood floors, granite counters, updated cabinetry and a giant backyard.

... full of grass.