Incorrect Syntax near A32

DECLARE @SQL nvarchar(4000)

SET @SQL = 'DECLARE @BL nvarchar(500);
SELECT @BL = COALESCE(@BL + '', '', '''') + Buyer
FROM (
        SELECT new_lastname, CASE new_deceased
        WHEN 0 THEN COALESCE(new_name, '''') + '' '' + COALESCE(new_middlename, '''') + '' '' + COALESCE(new_lastname, '''')
        WHEN 1 THEN COALESCE(new_name, '''') + '' '' + COALESCE(new_middlename, '''') + '' '' + COALESCE(new_lastname, '''') + '' (D)''
        END AS Buyer
        FROM FilteredNew_party
        WHERE new_partytype = 1 and (FilteredNew_party.new_order = A37C6131-2A32-E611-80EA-0050568E5BEC) ) T
        ORDER BY new_lastname; SELECT @BL as BuyerList'
EXEC (@SQL)