Expensing vs. Depreciating Assets Under New Tax Law

[Josh F.]

I am getting a bit confused about what capital improvement costs for my real estate portfolio can be immediately expensed vs need to be added to my basis and depreciated over time.  I am further confused by the concept of Bonus Depreciation and Section 179 expensing, and how that impact things.  Add to that confusion is the concept of Safe Harbor as it applies to all of the above.  Finally, understanding how the new tax law impacts all of the above rounds out my questioning.

Can anyone point me to a overview that talks to all of the above issues and spells things out clearly?