Mai I file an I-485 petition if I aged out?

I think you're asking if you can file the I-485 based upon 245(i). It looks like you may be able to do that, but anyone would need more info to...

Can't get married in Home Country, can I travel on B2 then change the status to L1B dependent?

This is a case where you almost certainly should be working with a lawyer. The key issues are when you obtained the B and what was disclosed during...

Validity of F1 status

You should be fine. Your visa is still good assuming you haven't done anything else to jeopardize it.

Me and my fiancee are getting married and she is a permanent resident. How long does the process takes on avarage?

several years; probably 3-4, 5 is certainly possible.

Sponsoring an immigrant thru i864, am I liable for his family, in case of public charge?

All people listed as beneficiaries of your sponsorship on the form. So, presumably, all of them.

You should contact an immigration lawyer to discuss your case and get personalized advice.

I am a green card holder and my wife green card holder too and she going to born our child in egypt can she bring the baby ?

Child will get LPR status (green card) if he/she returns with the parent on the parent's first trip back to the US after the birth. You probably...

F2A categories

No way to know how this impacts you with knowing when you filed.

I have no I-94, do I need it for the application submission of the i-485?

You'll need to prove lawful entry, either by the I-94 or in another way. Obviously, the I-94 is the easiest if you have any way of tracking it down.

Do we need to submit change of address AR-11?

No