Commercial residential vs multi-family

[Philip Tretola]

Myself and my partner have bought several multi-unit homes (2-4 units) recently and have contemplated buying a larger commercial property.  I was wondering if anyone has strong feelings/views on buying several multi-unit versus buying one larger residential unit?  When I think about my several houses together I look at them in aggregate as if it were an apartment and am getting the same ballpark for cash/expenses/unit cost etc so I'm not sure if I should try for commercial residential? 

Any views/thoughts/opinions would be greatly appreciated as i think through this question!

thanks, 

Phil