commercial rent

You need to know that there are some notified services for which RCM is mandatory, GTA is one of them. Limit of 5000/- is not applicable on these supplies..

Secondly RCM is also applicable on purchase from unregd dealer, the rent on commercial property in your case falls here. The limit of 5000/- per day can be availed here.

There is also a GTA of 18 services under the Reverse Charge approved by the GST Council. So in case of GTA RCM is mandotory