how would winning S50,000 affect my medicare part B?

Medicaid yes because you will be above the financial threshold.

How does a personal injury award settlement affect my SSI benefit ?

Can reduce or eliminate until you get below 2k. Speak to a local attorney for advice.

Social security and timeframe to respond to a notice

Respond asap. SSA bureaucracy stalls the process enough so do whatever possible to be ahead of SSA.

You shouldn't lose it unless the rehab can eliminate a disability you may have. If not, you should be okay. However, speak to a local attorney for...

Can my social security benefits be taken b?

15% of your garnishment to pay back taxes. IRS is unavoidable.

When can I apply for social security number after receiving a notice of acceptance for my I-589 petition ?

Will move this to immigration section.

I'm looking to purchase several businesses in the near future. Should I form an umbrella/holding company business?

I say keep it simple. I own numerous businesses and have friends and family whom own several businesses, and we hold them all in individual LLC's....

Will move this to LLC section so a business attorney can answer this for you. However, look it up at the Secretary of State office in Utah.

Applied for SSDIsince 2011 - denied repeatedly but have just been approved for ssi - is there any recourse for years denied ?

Work again or better develop your medical records. Speak to an attorney for further assistance.

What can cause your public assistance case to close?

Check eligibility with a case worker at your local office to find out.