Once you receive an EAD you may request the Social Security Administration to issue a SSN.

You must be lawfully authorized to engage in any employment or activities to derive any income from any source considered as income while being on...

Present your exact fact pattern to the US based sponsoring company's immigration attorney retained to handle your immigrant visa case.

You need to consult with a selected asylum law counsel directly.

The narrative calls for a comprehensive legal analysis by a trained immigration consul.

Ask your counsel of record regarding your case.

Technically, you might, however, your plan should be concentrated on completing the case correctly.

Ask the court to appoint a Public Defender or retain a private counsel to complete the case properly.

You may travel domestically, until the US ID Act will require a federally compliant id with a state valid id.

Since you are trying to fit your financial ability for an investment visa, invest in a licensed attorney with requisite legal experience.