I am an immigrant for 3 years and I am planning to get married with a non-immigrant. Does it change her status to an immigrant?

No. It will not change her status. In 2 years, you will be able to apply for US citizenship, then you can apply for her green card.

Your employer is required by law to maintain time records of your time in the form of time cards or time sheets and to give you check stubs that...

You are entitled to pay for being "on call" if you are on "controlled stand by". That is you are not free to do whatever you want during that time...

What paperwork exactly the immigration authorities ask for green card from the employer?

If you only have 3 employees, it will be difficult, but not impossible to obtain an L:-1 visa for a manager. You will need excellent documentation...

Re-entry permit

Technically, they could, but it is doubtful that Immigration would give it to them in time.

Is there a place for illegal immigrants to get free legal advice in Los Angeles?

The Los Angeles County Bar Association Lawyer Referral and Information Service.

Is it possible to be a care provider for my parents inspite being an H1B holder? Will this affect my greencard application?

Yes. so long as it doesn't interfere with your ability to work as an H-1B on a full time basis - 40 hours per week.

Will this be on my record & will it affect applying for my citizenship. Also should i not go to court?

If you were ever arrested or convicted of any crime, that must be disclosed on your citizenship application form. Therefore, you need to get legal...

When applying for Labcor certification/PERM, will the official look at one's resume and compared that resume to the resume

It is unclear from you question exactly what has happened. The Department of Labor is audittng Labor certification/PERMs very frequently now....

The questions that an immigration officer may ask a green card holder when one returns after eleven months but less than one yea

You will have to prove that you have not permanently abandoned your permanent residence in the US. You will want to show that you have filed Income...