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Hello, Sure you can promote both businesses that operate out of the same address. Just do it separately. Submit everything for each business as if it was the only one there. You will need to make sure to keep things separate and not get things mixed up as that could actually cause some problems. To make it easier I would work on one business at a time to make it easy to keep everything separate. Do business "A" and get it verified by Google and everyone else. Then go back and do the same for business "B". Make sure you set up separate accounts everywhere for each business. There are many times that businesses work out of shared office space. Like coworking facilities or some executive offices. It is a lot more common than it used to be. Best Regards