As stated earlier, he may be eligible for a "provisional waiver" If approved, he would only be out of the USA for a short duration. You should consult with an immigration attorney is a face to face consult presenting all the factual details of your case.
The processing time for a K-1 visa is anywhere between 6 months to one year. The process involves a number of forms, such as the I-129F / I-134 / G325A and the new online DS260. Several key pieces of supporting documentation are also required. If your case is handled by a competent immigration attorney, you will avoid any unnecessary delays.
The I-129 / I-134 / G325A must be signed by the petitioner, G325A by the beneficiary and the new online DS260 is signed electronically by the beneficiary. Please enlist the services of an experienced immigration attorney to help you with the process.
If your application had been approved at the earlier interview, CIS would have provided you with a document stating "Congratulations" we have recommended your application for approval. If you received such a document, than you won't be interviewed again.
As stated above, your mother could file a motion to modify custody if three years has passed since the last custodial order and/or there has been a substantial change in circumstances. Through the motion, your mother's attorney can request a child interview and if the interview is granted, you would be able to express your wishes to reside with your mother to the court. The opinion of the child, as well as his/her relationship with the parent; as well as others in the parent's household, are...
It will be worth your time to seek guidance and hire an experienced bankruptcy attorney who will advise you as to which amendments are required for your case and avoid a dismissal. Please take with you a copy of your petition to your consultation. As my colleague rightly states, you must appear at your 341 Trustee Meeting, whether you're represented or not.
Below are some agencies which offer free or low cost legal help. You can also try the self-help center at Family Court located at 601 N. Pecos Ave., Las Vegas, NV 89101.
online resource for free and low-cost civil legal assistance for those who cannot afford legal help. nevadalawhelp.org
Legal Aid Center of Southern Nevada
FREE LEGAL AID Nevada