Consecutive Row Count from date between Current Month and follow up 2 month

Hi ssk_1984 
Please refer to attached sample file with the solution

Current Month & Follow Two Months same value = 
VAR CurrentDate = 'Table'[REPORT_DATE]
VAR CurrentVerticalTable = CALCULATETABLE ( 'Table', ALLEXCEPT ( 'Table', 'Table'[Vertical] ), 'Table'[REPORT_DATE] >= CurrentDate )
VAR T1 = ADDCOLUMNS ( CurrentVerticalTable, "@Rank1", RANKX ( CurrentVerticalTable, [REPORT_DATE],, ASC, Dense ) )
VAR T2 = FILTER ( T1, 'Table'[SLA_MISSES] = "Not Met" )
VAR T3 = ADDCOLUMNS ( T2, "@Rank2", RANKX ( T2, [REPORT_DATE],, ASC, Dense ) )
VAR T4 = FILTER ( T3, [@Rank1] = [@Rank2] )
VAR Result = IF ( COUNTROWS ( T4 ) >= 3, 1 )
RETURN
    Result