05/19/2010 05:12 am ET Updated May 25, 2011

Octomom Nadya Suleman Facing Foreclosure

TMZ has learned Octomom Nadya Suleman has until the end of business on Tuesday to either pay more than $450,000 for her house ... or she'll be on the receiving end of a foreclosure lawsuit.

As we first reported, Octo didn't make a balloon payment of $450,000 on March 10. She's also behind $4,139 on monthly payments.

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