Q: When a man divorces his wife, is he still required to her nafaqah (maintenance) and how much, as well as shelter?

A: The husband is responsible to provide Nafaqah (shelter, food and clothing) during her 'Iddah as he was required to do during the subsistence of the marriage. Maintenance of divorce is till the end of the Iddah.

And Allah Ta'ala Knows Best
And Allah Knows Best