My husband works in an office among females who are immodestly dressed.

Answer

The doctors and even Ulama who do not observe proper Hijaab and who work with women are not the Shariah. Their activities and their mingling with women in their professions and occupations may not be presented as a valid basis. The only basis is the Shariah, not the practices of people even if they are great Ulama. If their practices are in conflict with the Shariah, it will remain haraam and not become halaal because they happen to be 'great' Ulama. It is not proper and not permissible for a Muslim male doctor to attend to female patients. He should divert them to female doctors. Only if there is a valid reason upheld by the Shariah may a male doctor attend to a female and vice versa. There are numerous non-Muslim female doctors who can handle Muslim female patients. A Muslim doctor is not supposed to work in a hospital where he has to incumbently interact with females. Thus, their actions are not Islamic proofs for permissibility. Your husband should himself make a sincere attempt to work elsewhere where he will not be in the company of women. He is bound to fall into the pit of zina. Shaitaan and the Nafs are deceiving him.