More money problems for Grandmama ... this time Larry Johnson's being sued for close to $500,000 after allegedly blowing off a bank loan from 2007 ... TMZ Sports has learned.
Bank of America claims the former NBA star -- who filed for bankruptcy last year -- is in the hole to the tune of $494,446.57 ... because he stopped making payments on his $450k loan in 2010.
Johnson's got serious money problems ... crazy for a guy who reportedly made more than $80 MILLION during his NBA career. Last year, he was accused of being a deadbeat dad to 4 different women.
Attempts to reach Johnson were unsuccessful.
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