Jani Lane's estate is screwing Jani Lane's ex-managers out of the dough they earned by selling off his catalog for a shockingly high price ... according to the lawsuit they just filed.
The late Warrant frontman's managers -- Just Having Fun Productions -- filed the suit, claiming Jani's estate has yet to pay them some hefty commissions. According to the suit, the managers engineered a deal to sell a chunk of Jani's music to a publishing company.
The deal was worth $3.75 million, and in the suit the managers say they're entitled to 15% of that amount ... which is $562k. However, they say they offered the estate a discount ... a mere 12.5% ... but still haven't gotten paid.