Because in some locations (c.f. London) this makes the asset far more liquid. Having renters requires you to engage a property management company and the prese

Because in some locations (c.f. London) this makes the asset far more liquid. Having renters requires you to engage a property management company and the presensce of tennants makes it harder to flip the property quickly if you need to get access to your stash of ill-gotten gains. It is not just stories and anecdote, there are large portions of high-end London real estate sitting empty because foreign buyers often do no want a tennant.