Mental Capacity Expert Witness Services
Early case assessment, retrospective analysis, opposing-expert review, expert reports, deposition, and trial testimony in selected matters.
Questions of mental capacity arise in guardianship and conservatorship proceedings, disputed contracts and gifts, financial transactions, medical-consent disputes, settlements, and other legally significant decisions.
Capacity is not a single global trait. It is decision-specific, time-specific, and fact-specific.
Bennett Blum, MD provides forensic psychiatric consultation and selected expert-witness services in matters involving contractual, donative, financial, and consent capacity; diminished capacity; retrospective capacity reconstruction; and vulnerability to manipulation.
For disputed wills, codicils, and closely related estate-planning instruments, review Dr. Blum’s testamentary-capacity consultation and expert-witness services.
Experience Relevant to Capacity Litigation
Board-certified in psychiatry • Fellowship-trained in forensic psychiatry and geriatric psychiatry • More than 30 years of specialized experience • More than 1,000 forensic matters
Dr. Blum’s publications include work on testamentary capacity, mental capacity, and forensic issues in geriatric psychiatry. His experience includes retrospective analysis when the person is deceased, has deteriorated, or can no longer be examined.
His analysis distinguishes diagnosis from the decision-specific abilities required by the applicable legal standard and addresses supporting evidence, contradictory evidence, reasonable alternative explanations, and the material limitations of the available record.
Capacity Issues Addressed
Mental capacity
Contractual, donative, and financial capacity
Capacity to consent
Diminished capacity
Retrospective capacity analysis
Vulnerability to undue influence despite partial capacity
Common Litigation Questions
Did the person understand the nature and consequences of the decision at the relevant time?
Was the decision affected by dementia, delirium, psychiatric symptoms, substance use, medication effects, grief, dependency, fear, or cognitive impairment?
Was capacity impaired enough to affect a contract, gift, settlement, consent decision, guardianship proceeding, or financial transaction?
Was the person vulnerable to undue influence even if some capacity remained?
Can capacity be reconstructed retrospectively when the individual has died or can no longer be examined?
Understanding Mental Capacity in Litigation
Capacity is not a single, fixed trait. It is decision-specific and time-specific: a person may have the capacity to make one kind of decision but not another, and capacity can fluctuate with illness, medication, and cognitive decline. A careful forensic analysis asks whether the person possessed the abilities required by the applicable legal standard at the relevant time. It distinguishes diagnosis from function and considers evidence of fluctuation, illness, medication effects, cognitive impairment, psychiatric symptoms, and the circumstances surrounding the decision.
Retrospective Capacity Analysis
When the person can no longer be examined, the analysis must be reconstructed from the contemporaneous record. Dr. Blum evaluates medical documentation, behavioral evidence, witness accounts, records of the transaction, and the clinical plausibility of lucidity or impairment at the relevant time.
How Dr. Blum Helps Attorneys
Dr. Blum is often called upon to provide:
Retrospective capacity analysis using records, collateral evidence, and behavior-based data
Review of medical records, cognitive testing, estate-planning documents, financial records, depositions, and witness statements
Case consultation on discovery and witness development
Analysis of the relationship between capacity, vulnerability, and undue influence
Clear, court-ready expert reports applying clinical findings to the relevant legal standard
Testimony when appropriate
Capacity and undue influence are related but not identical. A person may satisfy the applicable capacity standard for a particular act while remaining unusually vulnerable to manipulation. Attorneys evaluating that interaction may also review Dr. Blum’s work concerning undue influenceand forensic psychiatry litigation consulting.
Attorney Case Inquiries
Matters are screened for conflicts, fit, timing, complexity, and whether specialized forensic psychiatric analysis can materially assist counsel. The practice does not accept clinical-care requests, emergency matters, or pro se engagements through this website.
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.