01/25/2016 07:27 pm ET

How Long Does It Really Take to Unite A Stepfamily?

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When Heidi and Rob Sykes met, they each had three children from a previous marriage. During the five years they dated, they often found activities they could share with the children: pool parties, pizza dinners, their daughters’ soccer matches. “It was a lot of fun,” says Mr. Sykes, a 59-year-old realtor in Harrisburg, Pa

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