Not sure what happened to your deal 10 months ago, I only want to tell you not to invest in office condo. I sold our office building (not condo) in May 2021 and we had a good capital gain. I sold our office condo Nov 2020 and we had a loss. My husband used both places as his office. We also rented out part of the office building. The commercial broker who sold our office building told me office condo is really not a good investment. I hope you will steer clear of office condo investment. If you have a business and need a place, that's a different story.
Also not sure what you define as great cash on cash return. I have a friend who used to invest in commercial properties only (office, retail etc) and he told me these properties don't appreciate much (maybe nominal appreciation but not real appreciation) so he requires good CoC return. I asked him to look at a medical building in Orlando that's giving 6+% CoC NNN and he said that's not good enough. He requires double digit CoC, which is very difficult to find these days.