Undue Influence Expert Witness and
Litigation Consultant

When a vulnerable person’s decisions are surreptitiously steered by someone who misuses trust, authority, dependency, or fear, the result can devastate families, estates, institutions, and the person whose free will has been displaced. Bennett Blum, MD is a forensic and geriatric psychiatrist whose work focuses on the psychiatric analysis of undue influence, coercive persuasion, vulnerability, diminished capacity, elder financial exploitation, and manipulation tactics.

What Is Undue Influence?

In legal contexts, undue influence refers to the improper or excessive use of power by one person over another, resulting in decisions, transfers, agreements, or testamentary changes that may not reflect the influenced person’s true intentions. These claims are especially complex when they involve older adults or other vulnerable persons whose decision‑making may be affected by cognitive impairment, dependency, grief, fear, illness, isolation, or reliance on a caregiver, advisor, family member, professional, or new companion.

Unlike a simple capacity question, undue influence often requires reconstructing a pattern: who had access, who created dependency, who isolated the person, what vulnerabilities existed, what changed, what benefit followed, and whether the final decision was consistent with the person’s long‑standing values and relationships. The legal question may be stated in statutory or case‑law terms, but the evidence often lives in subtle human dynamics: fear disguised as loyalty, dependence mistaken for consent, and manipulation hidden under the costume of assistance or affection.

How Dr. Blum Helps Attorneys

• Evaluate the alleged victim’s vulnerability, mental capacity, dependency, and ability to resist manipulation at legally relevant times.
• Analyze relationship dynamics, access, isolation, dependency, fear, emotional manipulation, and behavioral changes.
• Review medical records, psychiatric records, cognitive testing, financial documents, estate documents, emails, text messages, deposition testimony, and collateral accounts.
• Clarify whether the facts support or undermine claims of undue influence, coercion, or exploitation.
• Assist counsel in identifying foundational testimony and discovery needed to evaluate the psychiatric and behavioral evidence.
• Prepare court‑ready opinions and testimony that translate complex psychiatric concepts into language judges and juries can understand.

Recognized Warning Patterns

• Confusion, cognitive decline, grief, illness, disability, medication effects, or psychiatric symptoms that increased vulnerability
• Isolation from trusted family members, advisors, friends, physicians, or long‑standing supports
• A new or intensified dependency on one person or small group
• Sudden, secret, or unexplained changes in wills, trusts, beneficiaries, deeds, financial accounts, gifts, or powers of attorney
• Use of fear, guilt, false goodwill, spiritual pressure, threat, deception, or controlled access to information
• Transactions inconsistent with the person’s prior values, affections, estate plan, or ordinary financial behavior
• Benefit to the alleged influencer or those aligned with the influencer

Why These Cases Require Specialized Expertise

In litigation, undue‑influence claims are rarely resolved by a single medical diagnosis or cognitive test score. The core question is often functional and contextual: what was this person able to understand, appreciate, resist, and choose under the conditions that existed at the time? Dr. Blum’s role is to help the Court understand the psychological and psychiatric evidence underlying vulnerability, manipulation, coercion, dependency, and apparent consent.

Dr. Blum’s work is particularly suited to complex, high‑stakes, or socially significant matters where the psychiatric evidence must be organized, explained, and connected to the legal standard without overstating the science.

Attorney Case Inquiries

Dr. Blum accepts a limited number of selected matters involving complex psychiatric questions, substantial financial or human stakes, or issues likely to matter beyond the immediate dispute. Attorneys may submit a non-confidential case inquiry through the Contact page. Do not send confidential materials, protected information, records, pleadings, discovery, or documents until conflicts have been checked and a written engagement agreement is in place.

Submitting an inquiry does not retain Dr. Blum, does not create a physician-patient relationship, does not create an expert-consultant relationship, and does not preclude Dr. Blum from being retained by another party unless and until a written engagement agreement is signed.

Related Attorney Resources

For questions involving decisional capacity, see Mental & Testamentary Capacity Expert Witness. For broader case consultation and expert-witness support, see Forensic Psychiatry Litigation Consulting. For deeper background on undue influence, read Undue Influence in Litigation.