Given her $480k income vs my -$84k debt, how quickly can we secure an emergency FC 2030 order to level playing field?

I need to file for custody of my twin sons (13yo) and challenge a post-nuptial signed under duress. My wife has used my immigration status as leverage to control custody decisions and force me into an unconscionable financial agreement. FACTS: Immigration Coercion: Wife filed I-130 green card petition for me, then used it as leverage Threatened to cancel petition unless I signed unfavorable post-nuptial agreement Recently attempted to cancel my I-130 in retaliation for requesting custody Have recordings of explicit immigration threats Post-Nup Under Duress: Signed December 2023 while separated from children and financially dependent Agreement gives her $2.5M in assets, leaves me with -$84K in debt My own attorney documented it was a "great disadvantage" before I signed I wrote at time of signing: "I have no other option to be able to live close to my kids" Wife's attorney admitted in writing she avoided discussing custody during post-nup negotiations because it would "weaken the enforceability of said agreement" Financial Disparity: She controls $500K+ in liquid assets She unilaterally drained joint accounts across three countries (US, Ind & Fra)I have zero access to community funds.