I think you need to talk to a lawyer in your area.  One place to look for a qualified attorney is our website, http://attorneypages.comIf you aren't given access to the office, your landlord is breaching the sublease, and you might have the option to get out of the deal and get your money back.  You might also be entitled, as an alternative, to a refund or reduction of your rent, for the time when you haven't been able to use what you've rented.  This may depend on other facts of your case, and on Colorado law;  I don't practice there, and there are variations in this from one state to another.