What do I do if immigration went to my house?

It depends on what your status is in the U.S.

You can write "unknown". You can leave the "in care of" section blank. It refers to the address, not whether you need a caregiver.

R c1 visa overstayed not a crewman but he works in guantanamo bay as a operator any chance of change of status if married to AC

No he would have to leave to get a an immigrant visa.

Documents needed to enter the US

It is best to have both if you can. A green card should suffice though. No, a China passport alone is not sufficient to be admitted into the U.S.

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If i am working with company A on L-1 visa and decide to leave company, what are my options?

No, an L1 is an intracompany transferee but definition you cannot work for a different company on that visa.

How can I find out when and where my mother was deported from the United States to Mexico, was about 13 years ago.

Get her alien number and dial 1800-898-7180 to get her information. If she was never in front of the immigration court, try doing a FOIA with CBP.

I-485 through current employer using approved I-140 from previous employer.

If you qualify for porting, then yes.

I have been back in the US back and forth May.2013 i came out for a trip never left moved to Miami now renting and working.

You are asking for advice how to immigrate to the U.S. without an immigrant visa. You are not permitted to do that.

I filed an i-130 form and have not received the receipt

It is nice to have, but you can get by with the case number and approval notice when that arrives.

I am a USC filing for my mom to come here in US permanently but the marriage certificate is in incorrect spelling of her name.

You should not need to provide your mother's marriage certificate.