What data will an appraiser use for a re-positioned apartment?

[Mike Dymski]

What time period (or data source) will an appraiser use for the gross rents (and expenses) of a recently re-positioned apartment community (T-3, current rent roll, near future rent roll, etc.)?

The re-appraisal will be used by my bank to cross-collateralize the re-positioned apartment with some of my other rentals for a commercial line of credit.  I would like to time the appraisal to maximize value (but also not have to wait until every last unit has been turned and rent raised).  I asked my commercial lender and he was unable to help.  Thanks in advance for the assistance.

Mike