No, you do not need to file a Maryland return if the following is true (from Maryland Dept. of Revenue):
IF YOU ARE A NONRESIDENT, YOU ARE NOT REQUIRED TO FILE A MARYLAND RETURN IF:
Your Maryland gross income is less than the minimum filing level for your filing status; OR
You had no income from Maryland sources; OR
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You reside in the District of Columbia, Virginia or West Virginia and had only wages from Maryland. See Instruction 11 for additional information;
Here is the link for the whole document:
https://forms.marylandtaxes.gov/current_forms/Nonresident_booklet.pdf
