Police arrested 47-year-old Danford D. Grant just after 9:30 p.m. near the Carnation Massage Clinic on NW 85th Street.
A clinic employee said Grant was a repeat customer who had sexually assaulted an employee at knife point 15 days earlier. When Grant came back to the business Monday night, employees called police.
Grant ran off, but officers caught up with him a short time later.
He was arrested and booked into the King County Jail for investigation of two counts of rape.
According to Carla Iafrate of the Bellevue Police Department, Grant is also suspected in an August 28 rape inside a Bellevue massage parlor. In that case, the victim said a man came in and raped her at knife point.
"The suspect looked exactly like the sketch that our sketch artist did back in August," Iafrate said.
Grant is a litigation partner at the Seattle law firm Bailey, Grant and Onsager, and the Seattle City Attorney's Office has confirmed that he is also a former employee of its civil division.
He will make his first court appearance Wednesday at 2 p.m.