As we reported, Khloe rented the $25k a month home for Lamar just blocks from hers, soon after he OD'd in Vegas last year. She wanted to be near him to help in his recovery.
Well, the last straw was dropped last month after family members found a crack pipe on the property.
We're told Khloe threw Lamar out of the 6,400 square foot pad. The lease is up at the end of the month and we're told she won't renew.
TMZ broke the story ... Khloe filed for divorce in May ... for a second time.
As for Lamar ... we're told he's going from house to house, staying with friends in the Valley.