B2 Zoning 5 Unit Decent Price

[Masa Don]

I have stumbled across a place a guy is selling it is B2 zoned, 5 units for 200K, residental rents should pull about 500 ish per unit, what are the oppourtunites for utalizing the comercial side of this? If this is a good deal how do you go about converting to comerical (at least appealing to comercial) and advertising? The leasing I am sure is quite different. . . thoughts?