Basement - 1 Exit - legal for business ? (1st floor is good with 2 exits)

Hello all!

Here in NY. I want to open a martial arts school. The space I saw has a first floor 1500 square feet (2 exits) and staircase that leads to a basement (also 1500). Am I allowed to conduct classes in the basement as well? Given that there is only one staircase, I am not sure if this is allowed. I am however under impression that I can run classes there only if there are less than 30 ppl (no sprinkler system).

See table 1015.1

https://up.codes/viewer/new_york_city/nyc-building-code-2014/chapter/10/means-of-egress#10

Can someone please let me know if I am interpreting this correctly?

Thank you in advance!
[{"id": "hstxiap", "text": "For best results talk to an attorney not the internet", "replies": [{"id": "hstxygz", "text": "That\u2019s the plan. I just want to hear other people\u2019s experience.", "replies": [{"id": "hstyflm", "text": "That\u2019s so specific odds are low that anyone here has relevant experience. A local lawyer is your only useful source.", "replies": [], "depth": 3}, {"id": "hstzhbi", "text": "You need a local zoning attorney. Even if someone here had experience you still need a local attorney. Don\u2019t rely on the internet for legal advice especially when if god forbid anything happened you didn\u2019t have right amount of egress and you\u2019re screwed. Court isn\u2019t going to be cool with \u201chey I heard it from some people on a popular anonymous forum\u201d. \n\nAnyways good luck.", "replies": [], "depth": 3}], "depth": 2}], "depth": 1}, {"id": "hsu2pfk", "text": "Call the county planning office and fire inspector and ask them. It would only take a few hours of being on hold at most and it's free.", "replies": [], "depth": 1}, {"id": "hsusne4", "text": "I did not sign a lease. I\u2019m still looking. A lot of locations I\u2019ve seen have basement as well. I had the impression that you need 2 exits to conduct business (unless storage). However, the attached link I provided led me to belief that if small enough, a staircase is okay. Just wanted to see if anyone had similar experience. For sure, I will talk to a professional. Thank you for the feedback.", "replies": [], "depth": 1}, {"id": "hvpq6ds", "text": "If your in need of flooring, we can help\n\n[FIBRcarpet.com](https://fibrcarpet.com)", "replies": [], "depth": 1}]