Am i responsible for paying cleaning service and damaged doors as a tenant?

I'll presume that your landlord notified you of these charges in her security deposit accounting letter, where she notified you that not only will she be retaining your entire security deposit but she also demands an additional payment. A landlord is under no duty to perform a walk-though with a tenant either at move-in or move-out.  However, if she brings charges against you to attempt to collect any damages, i.e. payment for the doors, then she has the burden of proving that you owe her the money.  Without a move-in or move-out inspection report signed by both parties, this could be difficult for her to prove.   You have the right to object to the claimed damages, i.e. the house was cleaner when I returned it to you than when I received it and the doors were damaged at  move-in I demand my security deposit returned.  However, if you get into a security deposit battle with your former landlord I recommend retaining counsel to assist you with this.  Chances are your lease will allow you to recover this cost and it is possible that the CO Security Deposit Statue will also allow you to recover not only the cost of your defense but possibly triple the amount of your wrongfully withheld security deposit.   Good luck! Don Eby