“(Mary-Kate and Ashley) wrestle for control, and even though they love each other, money causes them to argue,” a family insider revealed. The source states the control issues allegedly stem from Mary-Kate feeling as though Ashley manipulated her into bad business decisions, MSNBC reports.

“Mary-Kate had some real issues with the family after they put her in rehab. But now she feels like that may have colored her decision to cut them out of Dualstar. Mary-Kate now regrets her decision — on the other hand, Ashley thinks it was the right move. That’s what Mary-Kate and Ashley mainly fight about.”

Another sticking point is the sale of their New York City condo, which was all Ashley idea, according to the Enquirer’s source. “They argued over it extensively. … And then when Mary-Kate finally gave in and agreed to put it up for sale, they argued over the price!”
“They do have different ideas, but work things out as business partners and sisters