@Creepyconsequence
I'm surprised the IRS Advocate Service couldn't help. They say they are especially prone to help if there is an economic hardship or continued delays and lack of information from the IRS.
Is there a local IRS office in your town, i.e., a Taxpayer Assistance Center? If so, you can make an appointment to meet with someone in person from the IRS Taxpayer Assistance Center.
https://www.irs.gov/help/contact-your-local-irs-office
You can try contacting your district office of your US Representative. Several folks have reported that their Congressman was able to tweak the IRS. Stress your disability and family's homeless situation and all the hoops you have jumped through, including problems with the IRS Taxpayer Advocate Service.
