The Chicken Ranch was a well-known item in Texas, but it didn't get famous nationwide until after it was closed. A Texas writer wrote a story in Playboy called "The Best Little W____house In Texas." That was the basis for the movie & later a stage play of the same title. And yes, Jim Flournoy really did punch out Marvin Zindler in the rotunda of the Texas capitol, just like Burt Reynolds, playing Jim, 'punched out' Dom DeLuise, playing a character based on Zindler. Zindler was a muckraking TV journalist in Houston. When a certain very infuential lady in Texas, whose little brother--who was about the worst example of what a rich kid can be--got a burn at the Chicken Ranch, she--& his mama--were convinced 'those evil women' seduced him & purposely infected him. He was a regular customer of several such establishments, including La Siesta Motel in Austin, which was run by Hattie Valdez. She & Mama sicked Zindler on the Chicken Ranch & the rest is history.
Incidentally, the building was moved first to Dallas, where it failed as a restaurant. It's now reported to be in Nevada, where it's back to its old habits--but legally, since it's not in Clark County. Clark County, Nevada (Las Vegas) is the only county in the state where 'the profession' is illegal.