Don't panic. If you were granted lawful permanent resident status as a Conditional Resident (2-year term) then you can still successfully petition to remove the conditions of residence and get the full 10-year permanent resident status, after a final divorce is granted, and providing the marriage was entered into not for the purpose of obtaining the immigration benefit. The process is a little more involved and I recommend you consult with an experienced immigration attorney.
Every petitioner must "sponsor" and submit an Affidavit of Support. If the petitioner-sponsor's income or assets are insufficient for Affidavit of Support (AO$) sponsorship, then a joint co-sponsor must also submit an AO$. Since you are also the intending immigrant, it is likely that, provided your employment is authorized, your income can be used.
The EB-5 visa is rather complex. I urge you to work with an experienced EB-5 immigration attorney if you proceed with an EB-5 investment visa, especially if you are going through the $1M investment viz. the RC investment. This is not a simple visa application process. I caution you, not only because this is a substantial amount of money you are investing, but also because of the complexities of the visa process. Remember, if you proceed, that the initial grant of permanent residence is...
A green card holder (lawful permanent resident, LPR) can petition for an immigrant visa for: a husband or wife; or an unmarried son/daughter of any age. A U.S. citizen may petition for: a husband/wife; unmarried child under 21 years; unmarried child over 21 years; married child; brother/sister; or parent.
Because the number of immigrant visas are limited in each year, the government uses a Preference System, to allocate these immigrant visas. A US citizen's "immediate relative" (parent,...
I would not wait to receive e a letter from USCIS to petition to remove conditions of residence. If your CR status is expiring you need to be proactive in maintaining immigration status. It might be a good idea to retain an immigration attorney for assistance.
Generally, you can apply to USCIS to change the name on the Form I-551 ("Green Card"). Often this can be done at the I-485 Initial Interview. If the card has already been issued, you apply to USCIS to re-issue the card in a different name. You may want to consider the name your Passport and any airline or travel ticket is issued in, as well. Sometimes it is difficult to travel with travel documents in different names.