Renting an apartment to a secular Jew

Q: Is it permissible to rent an apartment to a non-observant couple or does it have to be a religious couple?
A: It is obviously good to rent an apartment to religious people, but there is no problem in renting to a non-religious couple since even though they are transgressing, they are not doing so with the apartment itself. They can be eating non-kosher food or desecrating Shabbat, but it is nonetheless permissible to rent an apartment to them.