Steep staircase to basement laundry. Am I liable of injury?

[Moises R.]

I have an old triplex with laundry for tenants in the basement. The basement steps are pretty steep and also have low headroom.  

If a tenant were to get injured on the staircase, would I be liable for the injury? Is there a way to protect myself from liability without removing access to the basement (a clause, extra agreement etc?)

 I've had a carpenter look at the stairs and there's nothing that can be changed.