In my experience, rent is only claimable if the landlord is paying the tax on it - in other words, only one of you and the landlord has to pay the tax, but if the landlord doesn't pay it then you have to (or rather it's not deductible). A lot of landlords charge an extra 10% on top of the standard rental rate if you will pay directly through your company, and that's because the company will declare it and the landlord has to pay tax as income. So what they usually do is give you the 10% off the rent but then you don't get to deduct it from your taxes - if you did, then the tax office would expect to see a reciprocal income tax payment from the landlord, and things might get hairy.
Seems like semi-legalized shadiness/tax-evasion to me, but I may be wrong about this. Definitely check your lease and/or talk to your real estate agent who got you the place before deducting that.
I was unaware of the ticket cost deduction, if someone could confirm that, I'd really appreciate it.
"Fortunately, I'm adhering to a pretty strict, uh, drug, uh, regimen to keep my mind, you know, uh, limber." - The Dude