What happens when somebody is "inline" for N-400 Interview? Do additional background checks happen during inline status?

We really have no idea. Depends on workload. Interview are generally scheduled after background checks are completed.

I130 pending from mother while daca approved

You can stay as long as DACA is valid. Approval of an I130 does not allow you to stay in the USA

Uscis receive my i 130 petition on June 28 2013 about when can i expect an approval?

November or early December.

Will I be able to Travel Abroad to Europe?

Have you completed your probation? If so you can travel. Are there travel restrictions on your probation? If so, and you have not completed you...

It will be in the officer's discretion to allow you to be there. I would get a certified translator to accompany them but even then its in the...

Does anyone know about the fee waiver for US citizenship?

It is very hard to get a fee waiver especially for this type of application. I would urge them to try make a plan.

Sibling I-130 form for Israeli citizens ?

The i130 should have been adjudicated by now. Consult an attorney on this. However it will take at least 10 years to get a green card through your...

If someone has been deported for non show in his Master Hearing, can he come back.

He may not come back. Consult an immigration attorney to see if there was a good reason for no show and to advise of options.

Question for immigration attorney

Depends on the doctor but even with a disability you cannot be exempt from this requirement unless you are over a certain age or have extreme...

You can withdraw your visa or just do not activate it by not coming to the USA. You would also need to advise your school.