Even while St Francis was still alive, the Order struggled with how to live authentic poverty and how to remain relevant. St Francis had his ideas, and his successors, after Francis stepped aside from leading the Order, had their ideas as well. After Francis died, there were even more ideas and “conversation” about how to live out poverty. In 800 years, this conflict doesn’t seem to have changed at all. Most Franciscan reforms and the creation of new Franciscan communities had to do with the interpretation of Poverty. Welcome to the rabbit hole.
Owning property was one of the central points of contention, and St. Francis did prohibit his friars from owning property. The notable exception, were early friars who lived in large convents in the cities. Although they lived there even during Francis’ lifetime, after his death there some some more disagreements with the rest of the Order, and these particular houses obtained a papal dispensation allowing them to own property as a community. (After some reorganization of the First Order centuries later, those friars are the ones we now know as Conventual Franciscans).
From what I can tell, and I haven’t seen the movie or read the book, it sounds like it isn’t too far fetched. Each of the Franciscan orders today will have their own guidelines, and each province will have its own way of practicing this based on local laws and structures. Leasing would probably be more common in most areas but even in cases where the Order may have to legally own property on paper , my understanding is that property is still not ultimately “owned” by the Order. Although rare, if a bishop would like to acquire that property from us, he could. Just a couple years ago, a certain archbishop wanted a friary for diocesan purposes, so it was vacated and handed over to him and the friars living there were moved to other friaries throughout the province. The intricacies of exactly how these property agreements and negotiations work in civil and canon law is well above my “pay grade”, but I’ll ask some friars who may know more or be able to clarify a bit.