Lowe's estate manager, Carol Andrade, defended the actor in a written declaration provided to Lowe's legal team and obtained by PEOPLE: "Jessica never told me ... that Rob ever said or did anything that she found inappropriate or offensive or that made her feel uncomfortable ... or made sexual advances toward her."
Andrade said she has supervised the nannies, chefs, drivers and housekeepers for Lowe, 44, and his wife, Sheryl, 46, for the last year and a half.
On Monday, Gibson, 24, filed a lawsuit in a Santa Barbara, Calif. court claiming the actor repeatedly exposed himself and inappropriately touched her, along with other harassment allegations against Sheryl.
Andrade was one of a group of current and former staffers who provided declarations to Lowe's legal team. Having worked with the Lowes in other capacities off and on for about 12 years, Andrade explained that Gibson voluntarily quit her nanny position twice over the last few years, but returned to the Lowes "on good terms."
"She told me both times that she left because she was getting burned out with the job," Andrade stated.
Another Lowe Staffer Speaks OutIn another declaration, Jennifer Dynof, president of Lowe Profile, a company owned by Lowe, also stated that she'd never witnessed any questionable behavior by Lowe.
"[In the past four years working for Rob], I have never seen him make any sexual advances toward any other woman or act inappropriately, offensively or disrespectfully toward any woman," Dynof stated.
Both employees added they would testify in court if need be.
On April 7, Lowe preemptively filed lawsuits against Gibson and two other former employees, accusing them of violating confidentiality agreements and spreading alleged lies.
A deposition for the Lowes has been set for May 19.