Court documents filed by the conservator of the late 22-year-old aspiring actress allege that Gordon directly caused the daughter of Whitney Houston to "suffer brain damage", reported OK! magazine.
In a statement, Gordon's representative said, "Nick has been heartbroken and destroyed over the loss of his love and it's shameful that such baseless allegations have been presented publicly.
"Nick has engaged civil counsel and intends to defend the lawsuit vigorously and expose it for what it is: a fictitious assault against the person who loved Krissy most."