Wow. You picked up the situation quickly, it is an LLC. One CPA in previous years would book Common Exp. as an 8825 location which did not seem right. As you mention I have allocated insurance to land and properties which are not in service but have not done so with any other common expenses. For all other common expenses I have simply applied the balance across all the 8825 entries of properties which are in service.

It was suggested to me to allocate based on a percentage of property income but that is a bit complicated and has some potential for being inaccurate (such as a vacant property). I also recognize that by applying common expense only to active properties (other than insurance) the net effect is a deduction of expenses which some might contend apply to all properties and perhaps a portion should be allocated as holding expense to inactive properties rather than being expenses. I want to be accurate but don't want to end up with a yearly allocation nightmare. Thanks so much for your effort.