Hassle factor of a property?

[Jedd Braunwarth]

how do you determine the time cost or hassle a potential property will take? All of our spreadsheets analyze the financial portion but how do you choose what is the better option from a time standpoint? 

For example one property in an A neighborhood and one in a B neighborhood. Or my current situation is I could purchase a duplex with around $400 cash flow (A area) or a 6 unit in a college campus area (B area) that would cash flow about $800 per month. To me the cash flow of more units is appealing but is it going to be a time suck? What would the ROI difference have to be for it to be worth your additional time, not money?

How do you factor this into your analysis?