02/05/2009 at 04:35 PM EST
A New York judge has dismissed a $50 million lawsuit filed by 50 Cent's ex-girlfriend, who was seeking half the rapper's assets, according to his attorney.
State Supreme Court Justice Judge Carol Edmead granted 50 Cent summary judgment Wednesday on the lawsuit, in which Shaniqua Tompkins, 33, also claimed
the singer was trying to evict her and their 12-year-old son, Marquise, from their Long Island, N.Y., home.
"I'm very thankful for this decision," the hip-hop star (real name: Curtis Jackson), 33, said in a statement. "I knew that once the facts were heard that justice would prevail. I hope now that we can put this behind us and move forward with our lives."
His lawyer, Brett Kimmel, called Tompkins's claims of a $50 million verbal contract with her ex "entirely frivolous" and the judge's decision "a complete and total victory for 50."
In court documents Tompkins, who split with 50 Cent in 2001, accused the singer of breach of contract, alleging that he promised to buy a $2.4 million house for her and their son but put the house under his name.
The rapper then filed a $20 million defamation lawsuit
against Tompkins in June for allegedly making false and offensive statements after a suspicious fire
burned down the Long Island home.
According to the court papers, 50 Cent claimed Tompkins accused him of starting the fire and "trying to kill" her and their son.
Jackson's attorney told PEOPLE at the time that her claims were "simply not true" since 50 Cent was in Louisiana working on a movie.