NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed the ratings of Mid-America Apartment Communities, Inc. and its operating partnership, Mid-America Apartments, L.P. including the 'BBB' Issuer Default Ratings (IDRs). The Rating Outlook remains Positive. A full list of rating actions follows at the end of this release. KEY RATING DRIVERS The affirmation of the ratings and Positive Outlook reflect that while MAA's recent, targeted and forecasted metrics are largely consistent with a higher rat