It is overly complicated, the service are terrible, and they often don't fix much of anything.

To complicate things further, you should have a policy around how and when they accept your offer.

I recommend you read books or (view You Tube)written by IRA Financial founder,Adam Bergman.The beauty of tax free cash flow of 14%+ ConC and no capital gains taxes ever, far outweigh any lost depreciation deductions.This thread is getting complicated. 

I imagine that when details are not shared, operators may feel it's tedious or unnecessary to share with investors or they're not confident with what is going on?

It will get more complicated if you're borrowing money. 

The way I've seen this work from a cost savings perspective is to hire an overseas bookkeeper to do the busy work, but also have someone higher level available to answer questions and to record the more complicated transactions.

What you are proposing makes perfect sense thus it's too complicated for the government and could interfere with your next rent payment. 

I have a complicated situation in showing proof of income, however, I have a great credit score.

It's also quite a bit more complicated than "this qualifies for 5 year and this doesn't qualify" since there isn't really a "list of every possible asset and it's depreciation life" most assets that qualify for 5 year fall under asset class 57.0 assets used in distributive trades and services.

I love the forward looking approach, however you're probably over complicating it at this stage.