Here are my thoughts. I’m just getting started and you’ve been doing these for a year so I would be interesting in hearing how your process has evolved.
I don’t do the interactive workshop in office, I do all of my interviewing and exploration on site which saves a few hours and I still get enough information to do a reasonable analysis. I also only spend about 20 minutes on sketches. My LLC’s have a pretty standard template now so I can plug in the information pretty easily which means it takes about an hour to do the report. All in, I’m averaging about 6 hours per LLC.