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if your exchange meets the 3 properties or equal or less of 200%, e.g., 1 relinquished for 2 replacement, and all finished in 180d and identified in 45 d, then you only need to do one form 8824.  On line 1 enters SUMMARY.  then you provide detailed statement for each replacement.   detail is basically answer all lines on F8824 but in your statements.  SO do not create more than 1 form 8824.    per your description, it seems your exchange is all like-kind and only 1 group.