Ray J -- Cops SWEET Plea Deal in Bev Hills Hotel Arrest

Ray J's sexual battery and assault case in Beverly Hills will be wiped away -- for the most part -- after his attorney struck an amazing plea deal ... TMZ has learned.

Honestly, Houdini's got nothing on Ray J ... who is pleading no contest to misdemeanor trespassing. Ready for the Houdini part? The other charges for sexual battery, assault on a police officer, and resisting arrest ... will all be dismissed.

TMZ broke the story when Ray was busted at the Beverly Wilshire Hotel back in May for allegedly grabbing a woman's breast, and then getting into a violent altercation with arresting officers. He kicked out the window of a BH PD patrol car.

The plea deal requires Ray to be on probation for 3 years, do 50 hours of community service, 12 anger management counseling sessions, and 12 alcohol therapy sessions.