Is one permitted to rent space to a church? I would imagine this would present numerous issues, including (i) deriving benefit from avodah zarah, and (ii) enabling a space for avodah zorah worship.
You are correct. We are not allowed to rent space to a church because we are not a allowed to provide the avoda zara with its needs.
Y:D 151-1, Minchas Yitzchok 1-120, Ohr Lagoyim 10-4.