New perspectives/Opinions needed

I know it’s a lot but please read .. I really need help… I am 24 years old. Me and my partner have our first child on the way and we are BEYOND excited ! Just completely overjoyed but I have some family drama that has just been weighing heavy on me.

I have been on a lease with my mom for 3 years even though I don’t live with her..it’s just that she doesn’t make enough to qualify for an apartment on her own. She only makes 1500 a month. The problem is that she has had a few incidents regarding paying the rent and other issues that made me not want to stay on a lease with her anymore. And I have been trying to get off the lease for a LONG time (like every year) and she always tells me “just do this for one more year” but I just don’t feel comfortable being liable for another apartment that I don’t live in and for my mental peace I just don’t want to be on another lease. To be honest I never wanted to do this. I just didn’t want to hurt my mom. I will say my mom is a single women and is now 64 and she will probably need help until shes very old. My mother is an amazing women she has done everything for me and my siblings. I am the youngest of my siblings. They are 40, 44 and 45 years old (My mom had me at 40 years which is why there is such a huge age gap between me and my siblings)

Long story short.. She wants to move to another apartment complex and I told her I cannot sign a lease with her because I can’t risk the financial responsibility and she has been telling me how she has no one else to help her and she will have to live at a hotel. She’s says I’m the only one who can help her because all my siblings are trying to get off their feet and have a criminal history and cannot rent an apartment…

The whole situation is stressful I just want to enjoy my baby on the way and plan for my future not worry about where my mom will live. She has always struggled to make ends meet but I just need a break. I have worked hard to make myself financially comfortable for my age and I feel like I have to stay/sign a lease with my mom to help her but it’s not my fault that my siblings can’t help. When we talk about the situation She always reminds me how she did everything for us and how she would never treat her mom this way but I have ALWAYS helped her. I’ve always been the go to. Even before the age of 18 I have helped her !!!

Thoughts ???