Which may not be all the problems - they don't always get everything.A sewer cam might also be worth thinking about.

It would be wise to order a home inspection from someone who does duplexes.It would also be wise To order a sewer cam inspection.

In addition, we're forced to pay ~1k/ month to help pay for the CAM upgrade fees. 

All tenants paying CAM charges.

This cost should be a part of your CAM.

Quote from @Cam Schwartz: Hi Jan.

In theory you could also recover 1/6th of the CAM costs, too, but in my very limited experience with mixed use, the first floor commercial could very well push back on that, since they very well may not be utilizing almost any of the common area, depending on building layout.CAM would come from any number of places, commonly:Cleaning and utilities for any common lobby.Window cleaning for the buildingParking lot maintenanceLandscapingCommon HVAC maintenance, i.e. if a single furnace heats multiple spacesUltimately, you will want to be talking with either a commercial leasing agent or an attorney that specializes on commercial leases.One thing to note, while NNN leases are generally great, there is certainly work for you on a semi consistent basis, in creating the monthly escrow amounts and annual reconciliation.  

Originally posted by @Cam Jimmy:I just saw how many replies were on this thread, so I figured I'd sit back and eat my popcorn and read everything :) Lol🤣.

Kevin, it will cost you a lot less to talk with your atty. and set up a prorated lease where a portion if no all of your utilities can get billed back to your tenants similar to many commercial leases that do CAM charges.

I'm not sure how straight-forward your rental amounts are, but I needed the ability to line-item out several different charges (CAM fees, etc.) as well as have different base rent amounts based on the year of the lease (cost of living increases yearly) and found that Innago was the best fit for me.