Looks like Howard Weitzman
, the lawyer for the MJ Estate thinks the claim is legit.
Weitzman tells TMZ ... "Mr. Robson's claim is outrageous and pathetic. This is a young man who has testified at least twice under oath over the past 20 years and said in numerous interviews that Michael Jackson never did anything inappropriate to him or with him."
Weitzman goes on ... "Now, nearly 4 years after Michael has passed, this sad and less than credible claim has been made."