There is nothing wrong with getting someone to clean your house but it could get tricky if you are inviting a coworker or a subordinate to clean your house. I cleaned people’s houses when I was in college but if my current boss thought to ask me to clean her house because that’s what I used to do it would be wildly inappropriate.

It’s especially questionable if you have romantic inclinations for her and wanted something more from her as you mentioned earlier

The whole arrangement might back fire. I’d look for outside agency to find me a cleaner, wouldn’t ask my subordinate