 When another merchant applied for permission to found a new one in 1740, she sued him before the government and won after a two-year legal battle.She was represented in court by her son-in-law Count Sparre and her brother-in-law Niclas Sahlgren.However, as she did not manage to increase the sugar production to meet the growing demand (which had been the condition of the government demanded of her in exchange for respecting the monopoly of 1729) Nicolas Jacobson was in 1749, after a new legal battle, allowed to open a second sugar refinery in Gothenburg.