Yes, they exist. We have a very nice one here IAH vicinty. It is called Ming Dynasty, and the food is excellent.
I am multi-generational Hua Qiao, as my great-grandfather was from Canton [Shunde area, hamlet of Hoh Chin on the Pearl River]. My grandmother was the last of the Putong Hua speakers in the family. That is the only bloodline that is Han in my family. The rest of me is faan kwai loh, and most of us look kwai loh now, mostly Latino. In any case the restaurants in the old Chinatown of L.A. used to be great [I grew up there]. Now because of all the recent immigration, the newer restaurants do not exhibit the same quality as before. Competition will take care of this eventually.
Z