There are two different types of tenancy agreements so this depends on what type of agreement you have signed.  If you are in a “Part 4 Tenancy Agreement”, please see RTB  https://www.rtb.ie/ending-a-tenancy/notice-periods-that-a-landlord-should-give for notice requirements.  If you are in a “Fixed Term Tenancy Agreement” this means you must see out the term of your tenancy before issuing notice.  Please refer to your tenancy agreement to find out which agreement you have in place.  Your notice must be provided in writing to letting@winterspm.com.  Please ensure to include your property address.