My question involves landlord-tenant law in the State of: Maryland

Really two questions in one. Original lease expired 11 months ago, and have been living month-to-month since then. Lease does NOT automatically renew. Original lease stipulated 60 days notice. I gave the 45 days of landlord verbal and written notice, which was agreed to by the landlord (e.g., move out date of 3/15/10) verbally and on voice mail, despite reminder that original lease contained 60 day notice requirement.

Now, landlord expects full rent on 3/1/10, despite the face that landlord acknowledges both receipt of notice and sufficiency of notice period. Landlord refuses to prorate rent, despite the fact that I will only be living in the property for half the month.

Question 1: Is this notice period mandated given expiration of the lease, or should 30 days notice be expected given month-to-month status.

Question 2: Does the landlords verbal and recorded (voice mail) acknowledgement of both receipt and sufficiency of notice make the original lease's 60 day notice stipulation null and void?

Question 3: Given the above, is there any reason that I should be required to pay for the entire month of March, for example? Is such proration of rent mandated by tenant law? Is there case law that anyone can site?

Thanks in advance.