DURING THE EXPANSION process the Tironensians had their share of disputes. Some were local. Some involved conflicting claims by other priories, monasteries, or religious organizations. The worst disputes were in the Beauce, where the wheat fields were valuable and local wars were being waged. One dispute occurred as far away as London, concerning overdue annual payments from the Exchequer. They ensued because the congregation was acquiring strategic and valuable properties together with regional authority and seigneurial rights. Many were resolved by the local lord or bishop. In dispute resolution the Tironensians were resourceful negotiators.

Tiron attempted to avoid disputes by clarifying rights and boundaries at the time of acquisition. The priory of Bacqueville-en-Caux included three churches. For the church of Notre-Dame-de-Bacqueville Hugh III, archbishop of Rouen, specified that the priory was not to interfere with the Cistercian foundation of Le Pin, also given by William Martel. For the church of Saint-Pierre-de-Bacqueville, he excluded the property of the monks of Saint-Wandrille-de-Fontonelle. The third church of Saint-Jean-Baptisted’Imbleville, a day's journey south on the Saâne River, was given without restrictions. When a new monk gave land and tithes (listed as fruit, wool, lambs, piglets, and coins) to Saint-Barthélemy-du-Vieux-Charencey, nearby land given to the monks of Saint-Père-de-Chartres was specifically excluded. When Le Tronchet was founded, agreements were concluded with the abbeys of Saint-Melanie and Saint-Jacut-de-la-Mer. Asnières was founded on land originally given to the monks of Saint-Nicolas d’Angers, who neglected it and then demanded a settlement for their rights in 1137. The Tironensians were settling in areas where earlier religious foundations were established and attempted to avert disputes by detailed agreements with witnesses.

During the twelfth century Tiron Abbey established its outlying farms and priories. Locally, the generosity of Rotrou II and his family toward Tiron was counterbalanced by the competitiveness of the Cluniac priory of Saint-Denis-de-Nogent-le-Rotrou and its powerful international congregation.