Get a lawyer for the case - you can easily do this wrong even with all the well-intentioned advice on this public forum.

Can I apply for adjustment of status?

Only if done right and highly recommended with the help of an attorney. This is risky and there are mines on which you could step on without...

Can I volunteer at an animal hospital while adjusting my status with immigration?

Only if the job you are about to volunteer for is not otherwise a paid position for someone else. In other words, your volunteering should not...

Birth of a child in the middle of a green card application for parents

Simple: Tell the employer about the situation and let them deal with it. I would not postpone things for this since if the child in the US, child...

What happens if you are physically separated form spouse during immigration process.

Get a lawyer ASAP.

Need to do conversion from L1B to L1 A or H1B

By far the L-1A is the better option for your future immigration prospects, if you are eligible of course. Get the right lawyer involved, if the...

My stepfather divorced my mom. Will my F2B petition still be valid?

Bad news, he is no longer your stepfather so the petiion is invalid, if the divorce was done legally in the country granting it.

Citizenship

See a lawyer ASAP

InPakistan we can married to 4 wifes, and I married to 2 wifes.

Have only one wife at a time if you want to immigrate to the US. Can't have several marriages at once, no matter what Pakistan permits.

How do i go about getting a visa for my 23 years old niece to study in the us.

Call schools and immigration lawyers