I would highly suggest outlining and documenting (on paper) your policies, procedures, and core values for your investment business. 

I'm sure there is legal paper work that can be sent over first without involving police.

I'm assuming you haven't received a notice from the IRS...It's time for you or your CPA to call and inquire about the refund.Really the time to call if the refund is still pending was 1 month after efile, or 2 months after paper file.

This seems like a smart plan on paper - but would this type of double-dipping be allowed by the IRS? 

The functionality and idea behind QB Desktop and QBO should be the same, however, the layout and some terminologies are different.

I found magazines and shoved plastic and paper bags inside. the old tenant from the previous landlord I guess did that and I never thought about checking in there to begin with when I realized the air flow was bad.

That would seem to be a paper work/confusing nightmare.What do you feel would be the best structure for this business?

So you could deduct $4k as a depreciation expense, and only have a net taxable income of $1k.You don't actually spend the $4k, it is only on paper.

In order to defer all taxes in a 1031 you must purchase at least as much as you sell and you must use all of the proceeds from the sale in the next purchase or purchases.In the scenario you lay out with 100K of gain that you want to use 50K of in the 1031 and contribute 50K to a S401K, you've got to do some benefit calcs1.

In reality it is paper that is only valuable because of the law and order of society.