Sean Stewart Evicted, Technically -- But He CHOSE Not To Pay Rent

Sean Stewart is ready to fight his landlord in court who is going after him for back rent ... claiming she shamelessly painted over dangerous mold ... mold that made him sick.

Stewart's landlord posted an eviction notice on Sean's door July 16, after he failed to pay July rent totaling $2,995. Stewart says he bailed a month ago because of the mold danger.

Stewart says he had the money to pay but didn't because it's his legal right ... he complained several times about the mold but all the landlord did was paint over it. So Sean exercised his right under California law to move out without giving notice ... because the apt. posed a serious health risk.

He says he's been feeling weak for months and developed red blisters on his skin ... all because of the mold.

We reached out to Stewart's landlord for comment ... so far, no word back.