How can the owner deal with problems resulting from the establishment of an Islamic center in his commercial building, and is it permissible for him to request their eviction, while maintaining the continuity of the center without harming his interests and the interests of other tenants?

Congratulations to the questioner for his faithful sentiment, and two pieces of advice:

First: To those in charge of the Islamic Center: Their actions are not permissible, and they must deal justly with the owner of the building for the following reasons: 1. Removing harm: The jurisprudential rule is "no harm shall be inflicted or reciprocated." Holding Friday prayers in the manner described may harm the building owner's livelihood by disrupting his rented offices. 2. Not taking anyone's property except with their willing consent: Taking a person's property out of shyness is considered a form of usurpation. The property owner is not pleased with the obstruction of passageways and entrances, and his shyness prevents him from stopping them.

Second: To the property owner: Fulfill the agreed-upon commitment with the Islamic Center until the term ends. As for Friday prayers, they were not part of the contract. However, it is not advisable to cancel them; rather, understanding should be sought to avoid problems, bearing in mind that they are in non-Islamic countries, and being keen not to harm people to present a good image of Islam, and cooperating in righteousness and piety.