i always push a little note through the door when i see the new people have moved in , saying i was the previous and give the price , leave it at that. this then often triggers them to try to do it themselves, make a mess of it ,then later phone me.
best to let them move in by at least a month before pushing the note through i find.
however i get what youre saying,if Asian youre probably onto a loser . however an Asian that has a house up for sale is a very good bet and they want the insides doing too . round my way houses are very slow selling ,so Asians can become long term,unwilling customers but pay okay