Grandmaster Su Lizhi is currently teaching Shang style Xingyi in Chevy Chase, MD, just a short drive or Metro ride from DC.
Classes are currently 10am-12pm on Saturdays at Grandmaster Su's home.
The amount of detail he goes into in his classes is extraordinary, and is tailored to each individual. You can expect personal attention from GM Su during the class that is invaluable. Anyone in the area interested in Xingyi, either as a beginner or an experienced Xingyi practicioner can benefit from his teaching. And if anyone is interested in his Xingyi lineage, a Google search will provide, or you can reply to this post or PM me for more details.
On a personal level, I have been a student of GM Su for only a short time, but he has increased my Xingyi knowledge and skill considerably. And as an experienced Xingyi practicioner, upon meeting him, I have been learning more than I could have hoped for. I can only hope that someone reading this takes the opportunity to attend one of the classes and meets GM Su, then you too will know that he is the Real Deal
Again, if you want more details, PM me or respond to this post.
Thanks