Boiler

You have a much bigger issue with removing conditions. And no you are not eligible to file under the 3 year rule

You will probably need a joint sponsor so I would get that lined up.

Can not see the 15 year old making it, probably the other 4.

The amount to sponsor is not that much, presumably you have checked that.

I would discuss the situation with a Family Lawyer where you live as to what if anything needs to be done.

You need to read the replies You and your Mother can both petition your sister A legal spouse and minor children will be included much later as derivatives. If her partner wishes to come they will need at some point to marry.

You are just missing a short notice job relocation

For your filing I would expect it to be longer, quicker for your Mothers case.

You file for Sister Children do not come into the equation now. Similar for any legal husband but she currently does not have one If she will not be working then your Mother will need a Joint Sponsor.

I seriously doubt USCIS new, this is something the Consulate dealt with. Now they do.

Customary Marriage: After the customary rites of marriage are performed, the couple can register at the local Registrar of Marriages in the district where they reside, along with one witness. They will be asked to provide a statutory declaration describing the marriage ceremony and declaring it was made in accordance with their ethnic group’s customary law. The application for the registration of the marriage must be made within three months of the marriage ceremony. The certificate will say "married under customary law" in the space provided for "condition." So assuming that has not been done your Mother can file for her, you do not file for the children. I think it is safer that your Mother naturalises as then the question would be is it F1 or F3 not is she was petitioned at all. She only files for the Daughter, the newborn would be a derivative. You should also file for your sister, her being married or not is not a factor for your petition.

Lagos is well know for issuing RFE, the cases I have seen dealt with by USCIS seem more likely to require a waiver. This Consulate I do not know, the NOID could say how they view it at USCIS anyway.

I think all the boxes have been ticked here.

Where did you get 'married'. Which country is your to be husband from/in?

yes

That sounds logical, good luck.

Do not forget AP and EAD, the whole package.

If you are subject to the two-year home-country physical presence requirement, you must return to your home country for a cumulative total period of at least two years before you can do any of the following: Change status while in the United States to the nonimmigrant categories of temporary worker (H) or intracompany transferee (L); Adjust status while in the United States to immigrant visa/lawful permanent resident status (LPR); Receive an immigrant visa at a U.S. Embassy or Consulate; or Receive a temporary worker (H), intracompany transferee (L), or fiancé (K) visa at a U.S. Embassy or Consulate.

That would depend if she wishes to adjust or consulate process

Are you the wife?

www.aila.org

They usually take about a year, but there are always exceptions.

That could have been the WoM What was the gist?