How do you factor in vacancy rates for MTRs?

[Taylor R Herschleb]

I have started researching MTRs in my area, but I am not really sure how to swag the vacancy rates. Any insight on how to arrive at this number (either nationally, regionally or preferably locally) would be helpful.

[Nicole Heasley Beitenman]

We're factoring in a slightly elevated vacancy rate of 15% instead of the standard 10%. We have enough reserves to cover the mortgage for a year if we're wrong.