Mr. Art I. Ficialintelligence, of No Fixed Abode, wishes to start his own business to market and distribute his flagship product, the TLOS (Totally Legitimate OS). In time, he intends to expand his product lines to include consumer hardware manufacture, pharmaceuticals, biotechnology, and telecommunications (oh, and a heavily-armoured flying battlewagon with inexplicably sophisticated electronics, but that's just a side project).
Of course, Mr. Ficialintelligence is a rather shy and retiring fellow, plus he's always very busy, so he won't have time to actually meet any of the people he's hiring to work for him. Oh, and I'm sure his secretary can sign any documents you need on his behalf.
So, as per the title - How plausible is it for Mr. Ficialintelligence to run his organisation entirely by phone and email? Is he going to run into any legal barriers on account of not having a physical body? And why is that heavily-armoured flying battlewagon rolling towards the White House?