Lawyers for the partner of Bobbi Kristina Brown say a lawsuit accusing him of contributing to her death is false and slanderous.
The administrator of Bobbi Kristina Brown's estate added a wrongful death count to the lawsuit against Nick Gordon. It accuses Gordon of giving Brown a "toxic cocktail" and putting her face-down in water.
Mr Gordon's lawyers, Joe Habachy and Jose Baez, said the allegations are baseless. They said Mr Gordon is "heartbroken" and called the suit a "fictitious assault".
The 22-year-old daughter of Whitney Houston died in hospice care on July 26, months after she was found face-down and unresponsive in a bathtub in her suburban Atlanta home on January 31.
Mr Gordon has not been charged. The Fulton County Medical Examiner's office has said an initial post-mortem revealed "no significant injuries".