Is he a owner of the business?

if so, he must have a permanent working address. 

you may visit his shop to check it out. and check his lease agreement for leasing the shop.

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• 回複：According to the black lady, yes. Thanks a lot for your sugge -潛水小雨- ♀ (0 bytes) () 12/21/2012 postreply 22:40:45