Need some advice

Your inability to recall your last employer is a known obstacle in the TDIU process, but it is not insurmountable, and you must proactively address the VA's request to avoid a denial. The form you received is likely VA Form 21-4192 (Request for Employment Information), which the VA is required to attempt to obtain under 38 CFR 3.321(b)(1) and 38 CFR 4.16(b). However, the VA cannot deny a TDIU claim solely because a former employer does not return this form; the ultimate determination is based on all evidence, including your lay statements and medical evidence regarding your unemployability, as established in *Espiritu v. Derwinski*. Your next critical step is to immediately submit a written statement to the VA (on a VA Form 21-4138) explaining your situation—detail your period of homelessness, your memory difficulties (potentially linking them to a service-connected condition like PTSD, rated under Diagnostic Code 9411 per 38 CFR 4.130), and that you cannot provide the employer's contact information. Concurrently, gather any alternative evidence of your last employment and unemployment, such as old tax records or statements from people who knew you during that period, and submit them. You should also ensure your treating physicians provide strong, detailed opinions that your service-connected disabilities preclude substantially gainful employment, which is the central requirement for TDIU under 38 CFR 4.16(a). **Disclaimer: This information is for educational purposes regarding VA claims processes and is not intended as legal or medical advice. For personal guidance, consult an accredited VA attorney or claims agent.**