Hello, how are you doing? I'll be happy to assist you.
Hello, Daniela. I can help you with all of this today. We really should limit each question to one question. I can size the beam as this question and you can ask the other two as separate questions or I can submit an additional service offer to do all 3 here.
I will have some additional questions for you.
What is the exterior wall construction? Wood or CMU?
What is the joist length supported by the wall?
Will is support the second floor, attic, and roof?
What is the city and state so I can look at snow loading?
Do you still need help with this?