"I have never been personally asked by the coroner or anyone from the Health Department to come and inspect my home for mold," Murphy told PEOPLE. "In the last eight months, I have been through the most unimaginable events, which no one could ever fathom. I have and will continue to be very cooperative and fully comply with any such request."
As for the speculation that has surfaced, she says, "It's absurd that this kind of misinformation is being reported by the media."
Despite news reports that health officials were investigating a so-called toxic "black mold" in the Hollywood home where both Brittany and Monjack died and where Sharon still lives, a source at the LA County Health Department tells PEOPLE the that office is not investigating.
Adds Michael Schiff, an attorney for Sharon Murphy: "To the best of my knowledge, there has been no evidence of mold at the Murphy residence."
The official cause of death for both Brittany Murphy and Simon Monjack is pneumonia and anemia.
The House InspectionOne possible source of confusion, says Murphy family spokesman Roger Neal, is that last year the family had the house inspected – but found no sign of mold.
"Due to the inferior products used by the builder and sub contractors, the Murphy home had a persistent leak problem," Neal says. "Simon Monjack [hired] an attorney and filed a lawsuit against [them]. In October 2009, to insure the home was safe to occupy, the attorney hired a well-respected company to conduct a full inspection of the home which would include … checking for any possible mold."
Neal says that according to Monjack, the report revealed no mold problem. Neal also said that Sharon Murphy is in the process of reviewing the report herself.
With additional reporting by JOHNNY DODD