
We just spoke with Amer Haddadin -- the man who sold the house to Octomom's dad and still holds the note -- who tells us Nadya Suleman has yet to fork over this month's $4,060 payment ... and still owes an additional $3,500 for previous months.
As we previously reported, Amer tried to foreclose on the house a few months ago because Octo failed to pay a $450k balloon payment when it was originally due back in March. But Octo's lawyer talked Amer into giving her an extension until October 9 ... provided she made her monthly payments on time.
Amer tells us he called Octo's lawyer about her new debt -- but was told she didn't have the money to pay him ... and will consequently begin the foreclosure process ... "right now."
Calls to Octo's attorney have not been returned.