Rental Property Expenses for tax deduction

As a new landlord, I wanted to ask the veterans on tax deductions for expenses I incur on the rental property.

things like: Bathroom Remodeling expenses made by me.. (or by contractor), plumbing expenses for unclogging sewer lines, replacing light fixtures due to the broken fixtures, purchasing a new washer/dryer/other appliances to replace the broken old ones.. hiring a company to service the Boiler/AC before the winter/summer, hiring a handyman to do a little odd-jobs.. and preventive maintenance of the house such as gutter replacement, brick/mortar pointing, etc2..

I do keep all the receipts of them.. but my real question is: which one is deductible as a one time deal, and which one is spread out as "depreciation" - 5,10,? years...