Do beam supporting posts need to line up across multiple levels of a house? I have a steel beam holding up the main level of my house. In line with that beam, on the main level is a load bearing wall I wish to remove. All posts in drawing are existing. I do not want to move the posts on either level.
The posts do not have to line up- structures can certainly be designed and engineered that way.
Is this OK for your project ? There is no way that anyone here can make that judgement with the information you have given. There are many other structural considerations when thinking of replacing a bearing wall with a beam (load, uplift, lateral forces, etc).
I am guessing you would like someone here to say that it will be just fine- and it very well might be OK.
This is something you need to be sure of. It is really worth the time and money to have a proper evaluation done by a qualified engineer familiar with your local regulations.