Rich Homie Quan Sues -- Record Exec Is Living On My Cash! My Hits Funded His Real Estate Deal

Rich Homie Quan claims he's another victim of the greedy record industry ... and is suing his label for allegedly ripping him off to the tune of $2 million.

In his lawsuit obtained by TMZ, RHQ calls out Think It’s A Game Entertainment and its CEO for screwing him out of royalties from several albums including his biggest hits “Flex” and "Type of Way.”

Quan says the CEO used some of the jacked funds to buy Atlanta real estate for $159,500 -- and says the guy even pocketed $550,000 from a distribution deal with Def Jam for "Type of Way."

Quan says he's cut all ties with Think It’s A Game Entertainment. We reached out to the label and its CEO ... no word back yet.