Celebrity attorney Lisa Bloom said she is planning to file the suit in California on Monday and will hold a news conference to correspond with the filing as one of the women is set to appear with her.
The other woman and man involved in the suit will remain anonymous and will appear as Jane Doe and John Doe in the lawsuit.
Bloom, whose mother is high-powered attorney Gloria Allred, says that the three people claim they had s*xual contact with the Grammy award-winning singer after 2012.
They claim that 38-year-old Usher – whose real name is Usher Raymond IV – did not warn them that he allegedly had an STD.
DailyMail.com has requested a statement from Usher’s representatives.
The latest lawsuit against the No Limit singer comes as a woman in Atlanta claimed last month that he did not tell her he had the STD prior to having unprotected s*x.
The woman initially filed a $10million lawsuit against him, but raised it to $20million after she allegedly found out she tested positive for the STD.
The singer’s accuser, who filed under the name Jane Doe, is suing the entertainer in connection with her doctor bills, punitive damages and emotional distress.
According to the court documents, she had the test done after learning through the news that Usher told a court he had herpes in a 2012 lawsuit he subsequently settled for $1.1million.
In the woman’s initial suit, according to the outlet, she told the court that she had s*x twice with the father-of-two.
In their first s*xual encounter, at the woman’s Atlanta residence on April 16, she said she performed oral s*x on the singer and they later had intercourse with a condom.
Their second encounter was unprotected, and took place in a hotel on April 28 in New Orleans, where the performer was to take part in the city’s Jazz and Heritage Festival.
In legal docs in the first case, initially published by Radar Online, Usher said he initially learned he had herpes around 2009-2010.
The woman said that Usher said he was not infected with herpes despite a ‘greenish discharge’ from his private partia, leading her to continue having s*x with him.
She was eventually diagnosed with herpes, experiencing symptoms including vaginal sores, fevers and chills.
Around 2011-2012, according to legal docs, Usher paid an approximate $2,754 in medical bills, with his doctor telling the woman the performer had herpes.
The Love in This Club singer celebrates his two-year wedding anniversary to wife Grace Miguel in September.