Shelly Sterling Deal -- 'Clippers' Number 1 Fan' ... For Life!!!

TMZ Sports has obtained the $2 billion contract between Shelly Sterling and Steve Ballmer -- and there was one interesting clause ... Shelly demanded an official lifetime title before she would agree to sell the team ... "Clippers' Number 1 Fan."

It's there in plain black and white -- besides agreeing to give Shelly 12 tickets for life, "Buyer shall also give Shelly Sterling the title of "Owner Emeritus" and "Clippers' Number 1 Fan," which titles she shall retain for the duration of her lifetime."