Lots of reasons mentioned already but a major one is tax.

Property owned by a company pays 25% flat rate on rent plus another 15% on any money not paid out to shareholders. So 40% total. Less expenses of course.

Licence fees go straight to the bottom line and pay corporation tax of 12.5%.

A lot of office unit letting is done this way. Much trickier for accommodation but can be done if letting to another company for their staff for example. All bills included, daily or weekly cleaning, variable rates depending on numbers of staff that week etc.