Small Mixed-Use O&M Estimating Tool

[Ryan Schaefer]

Hi all,
I'm planning a smaller mixed-use project (medical/office + apartments second floor and above). I'm looking for a tool to estimate operating and maintenance costs for both uses. The model I found on Adventures in CRE was for condo / retail which doesn't really apply.

Any recommendations, or perhaps some thoughts on other ways to estimate monthly expenses for mixed-use?

Thanks in advance!