Error in a Lease Document

[Zulu01]

My question involves landlord-tenant law in the State of: FL
My friend and her roommate leased a property, they are both on the lease agreement that was supposed to start on november 2011. The roommate bailed out on her and left without notice, my friend is stuck with the whole rent, and she is afraid the landlord will make her responsible for the whole rent, she is afraid that if no paid in full the landlord will evict her and possible sue her for future months. Upon inspection on the lease agreement, the landlord and/or landlord's attorney wrote that the lease agreement is to be from november 2011 to november 2011. Does this mean that legally according to the document the lease agreement ended after the first month of being there and my friend is no longer liable if she decides to move out. what are the consequences of this mistake on the contract made by the landlord?

[Mr. Knowitall]

A trivial clerical error is not going to get your friend out of a lease. She knew what the intent was.