Room NO Window Can I Rent as Office Space?

[Maria Mora]

I am trying to buy first property to house hack, live in for 1 year, and buy another. The house has the master bedroom with a window that leads to an added enclosed room that looks like it was previously a sun-room. It has a restroom with a window in it as well, but the actual room does not have a window leading to the outside (I just learned it's called egress). The only window is leading to an enclosed space. My question is, can I legally rent this space? Maybe label it as an office space? I got a good deal on the house, but do not want to invest in it if I would be out of compliance with renting regulations. I do NOT want a lawsuit or do not want bad living conditions for tenants either. What do y'all think?