Also, how old are your capex items? 

Here is a critical item I ran into with other properties: Avantstay has a vendor to take out and bring in the bins.

I'm wondering how much specifics I need to include for each line item. 

This is true for bonus depreciation items as well.  

Of course, at the end, he plugs a masterclass with more specialized small group training for $3000 (money-back guarantee if not satisfied).

Highly suggest some YT videos for training / help on the platform.

The other business I run is reselling, listing items on eBay & FB.

What were the biggest line items?

We have 8 business entities availing of their services, and as "advisors", they should make business life easier -- not add more work on your plate --- but instead, my team and I have been checking for mistakes, or following up on action items, missed deadlines, and paying penalties to the IRS and Secretaries of State due to their negligence.

The property taxes will be on his Schedule A during the time the property was his primary residence, assuming he itemizes.