"These lawsuits demonstrate what we all know: Hotels know about sex trafficking, hotels participate in sex trafficking and hotels make money from sex trafficking," attorney Jonathan Tonge, who represents the four plaintiffs, said in a statement.
"When the choice comes down to leaving a room empty or renting that room to sex traffickers, the hotels in these lawsuits consistently chose to rent the room to sex traffickers."
Atlanta officials have long complained about the sex trafficking industry.
The city ranks third in the country in terms of reports of human trafficking, according to Mayor Keisha Lance Bottoms.
The lawsuits cite a study commissioned by the US Department of Justice that says Atlanta is one of the most profitable cities in the country for sex traffickers.