New Alleged Michael Jackson Child Sex Abuse Victim Files Lawsuit

2:30 PM PT -- We have received the following statement from Michael Jackson's estate attorney:

"This is yet another attempt to hit the lottery by suing the Estate of Michael Jackson more than seven years after Michael’s death and close to 30 years after these incidents supposedly occurred. We believe this claim was created from whole cloth and is without any merit. It’s also no coincidence that this woman is represented by the same attorneys involved in two other frivolous claims against the Estate."

Michael Jackson wrote a bunch of checks totaling over $900,000 to cover up child sex abuse allegations from a then 12-year-old girl, but now she's suing 30 years later.

The woman filed the lawsuit as a Jane Doe, saying Michael started abusing her in 1986 when she and her mother had stopped by his Hayvenhurst home as sightseers. She says Michael invited them into the house to see his "candy area." She claims Michael fondled her genitals and gave her "movie kisses" ... tongue kissing her mouth and body. She also alleges there was vaginal penetration.

According to the docs, the abuse continued through puberty. When she was 16, she says Michael started writing checks to keep her quiet.

She says the first was for $2,500, and the biggest one came in 1993 for $600k. All told she says she got more than $900k over 3 years -- and the docs she filed include copies of checks and stubs showing the payments.

We've reached out to the MJ Estate ... so far, no comment.