On April 3, 2026, the Board of Immigration Appeals decided Matter of Pelagio Mendoza, 29 I&N Dec. 542 (BIA 2026). The case arose in cancellation of removal, but it has immediate consequences for waiver cases built around health and mental-health hardship. The respondent won cancellation before the immigration judge, then lost on DHS appeal because the hardship record was too thin. The family had a hardship narrative, but the case leaned heavily on testimony about a child's mental health without the diagnosis, treatment records, or provider evidence that should have been available.
Pelagio Mendoza applies the higher cancellation standard of exceptional and extremely unusual hardship. Waiver cases use the lower extreme hardship standard instead. Even so, the evidentiary lesson still matters in waiver practice. When a hardship theory turns on health, mental health, or dangerous relocation conditions, adjudicators expect records, expert evaluations, and other corroboration. Family testimony alone usually will not carry the whole burden.
Source note: case links in this post go to BIA Edge where available. Waiver guidance links go to the USCIS Policy Manual.
What the Board actually held
In Pelagio Mendoza, the Immigration Judge had found hardship largely based on testimony that the respondent's teenage son had anger issues and had, at some point, wanted to commit suicide after his parents' divorce. The Board reversed. It emphasized that the record did not show an ongoing diagnosis, did not show current therapy, and did not include a report or affidavit from a treating mental-health professional tying the respondent's removal to ongoing harm.
The Board's main holding was practical and direct: lay testimony about a medical or mental-health condition will usually be insufficient when expert testimony, reports, or medical records exist and reasonably could have been produced. The Board also rejected the respondent's unsupported argument that HIPAA prevented access to the child's records, noting that the record did not show the family had actually been denied access. Matter of Pelagio Mendoza.
That reasoning builds on Matter of J-J-G-, 27 I&N Dec. 808 (BIA 2020), where the Board explained that applicants usually lack the medical expertise needed to give persuasive testimony about the seriousness of a qualifying relative's condition or the adequacy of treatment abroad. Pelagio Mendoza applies the same instinct in a more direct mental-health setting.
Why Pelagio Mendoza still matters in waiver cases
The legal standard in waiver cases is different. USCIS says extreme hardship is lower than cancellation's exceptional and extremely unusual hardship. That does not mean the evidence can be casual. USCIS instructs officers to consider professional evaluations, official records, affidavits, testimony, and country reports. USCIS also says that applicants who claim severe ongoing medical problems usually will not establish them without medical documentation, because officers cannot substitute their own medical judgment for a professional's. USCIS Policy Manual, Chapter 6.
That evidentiary failure shows up in waivers all the time. A packet says the U.S. citizen spouse is depressed, a parent has a chronic condition, or relocation would be unsafe because treatment is unavailable abroad, but the filing contains only declarations and general statements. The hardship theory may be plausible. The record still looks unfinished.
What kind of experts strengthen a hardship case
The most obvious example is the psychological evaluation. If the hardship theory depends on depression, anxiety, PTSD, trauma, suicidality, or the aggravating effect of separation, a licensed mental-health professional can do work that a declaration cannot. A good evaluation identifies diagnosis, symptoms, severity, treatment history, and the likely effect of separation or relocation on that particular person.
A medical expert, or often a treating physician, can be just as important. If the qualifying relative has a chronic illness, disability, pregnancy complication, or serious treatment regimen, the filing should spell out diagnosis, prognosis, medication, specialist access, caregiving demands, and what happens if the applicant is no longer present to provide financial or day-to-day support. USCIS's hardship guidance expressly treats health conditions, quality of care abroad, and the psychological impact of separation as relevant factors. USCIS Policy Manual, Chapter 5.
Country-conditions evidence is the third category that is often underdeveloped. Sometimes a well-supported filing does not need a retained country expert because official reports are enough. In closer cases, though, a country-conditions expert can apply general conditions to the qualifying relative's specific risk. That can matter where the theory involves lack of medical treatment, violence, discrimination, language barriers, social stigma, or the collapse of support structures after relocation. USCIS says officers may consider official country reports and other government determinations regarding country conditions, and in closer cases the filing should tie those sources to the family's facts instead of assuming the adjudicator will do that work.
What weak hardship records tend to have in common
Many weak records contain real hardship but present it in terms that are too generic for the theory being advanced.
One common problem is a declaration that says a spouse or parent is anxious, depressed, or emotionally overwhelmed, with no clinical evidence behind it. Another is a reference to therapy without a provider letter, treatment summary, or records. Another is a claim that relocation would interrupt necessary treatment, paired with no documentation showing what treatment is actually required or what is unavailable abroad. Another is a country-conditions section that relies on broad headlines rather than evidence tied to the qualifying relative's situation.
For practitioners, the point of Pelagio Mendoza is clear. Emotional hardship still matters, but when a case depends on health or mental-health hardship, the adjudicator will expect the kind of corroboration that normally exists in the real world. If the family has already been seeing a psychologist, psychiatrist, therapist, doctor, or specialist, the record should usually show it.
Practical implication for waiver strategy
For lawyers and families preparing hardship filings, testimony still matters. But if declarations are supplying the diagnosis, prognosis, or relocation analysis by themselves, the record is probably underdeveloped.
If health or mental health is central to the case, get the evaluation. If the theory depends on a medical condition, get the treating-provider letter and current records. If the relocation analysis turns on dangerous conditions, treatment failures, or particular vulnerabilities abroad, build a real country-conditions package and consider whether an expert declaration would make the difference. Some of the most sympathetic cases still lose because the proof never catches up to the story. In hardship work, the better-documented record usually wins.
If you are preparing an I-601A waiver, another hardship-based waiver, or a cancellation of removal case and need to decide whether a psychological, medical, or country-conditions expert would strengthen the filing, schedule a consultation.
Sources: Matter of Pelagio Mendoza, 29 I&N Dec. 542 (BIA 2026); Matter of J-J-G-, 27 I&N Dec. 808 (BIA 2020); USCIS Policy Manual, Chapter 2; USCIS Policy Manual, Chapter 5; USCIS Policy Manual, Chapter 6.
Chris Hammond is a Houston immigration attorney focused on family-based immigration, deportation defense, and hardship-based immigration strategy.