Is it permissible to rent an apartment which has “saint Mary” in the name? And is it permissible to rent if it has a late fee which is riba. All apartments to my knowledge have this and I heard it’s unavoidable. Can I rent it when I already have a home? I don’t need it but it might be good for me.

Ustadh AbdulAziz al-Haqqan
It is allowed yes, and if there is a need for you to rent, then you can rent the apartment and the sin is upon them for the late fees as you do not have any other option. If you don't need to rent, then better not to indulge in this.