Tourist visas for different regions

Hi, my mom and I are thinking of taking a trip to China. She lives in Los Angeles while I live in Oregon. If she gets hers from the Los Angeles office, can she take care of mine as well even though I live in another region? It would be a pain for me to have to get one from the San Francisco office since I live far away in Portland, and I really would rather not pay someone additional fees to help me get it. Thanks.