There is pretty sweet software to look that up these days.

If you're a non-accounting type, might Google "Accounting audit trail" and scratch the surface of the topic to organize receipts, expenses and capitalized items.

(I am not a CPA and only speak from experience) @Matt Moldenhauer You can deduct all the mileage you want so long as you can justify it and such justification can be upheld in an audit.

I have been spoiled by my access to ESRI's ArcGIS software.  

Is there any software / website out there which can analyze different neighborhood rents and costs (within a distance range), and return results?

I believe we got the "brokers" license; when I was audited they took the "parking" at face value.

Hi BP ersQuestion for those of you who do your own property management: Which software program spreadsheets are you using and why?

By "good" water in your post, I assume some auto-correct software mangled that from what should be read as "cold" - correct?

We never saw any hint of an audit because the IRS doesn't know/care who the property is deeded to (that is a state issue not federal), but more importantly, each property was properly identified in the 1065 (US Return of Partnership Income) on the Rental Real Estate Income and Expenses Form 8825  - from which each member gets their K-1.   

Real estate investors are more likely to be audited than average taxpayers, so if you are evading taxes you're more likely to get nailed HARD by the IRS.