Strategic Intelligence for Your Most Personal Matters

Family law cases turn on facts — and facts only carry weight when they are documented correctly. Armstrong Investigations, PLLC provides discreet, professional investigative services for individuals and attorneys navigating divorce, custody disputes, infidelity matters, and related domestic proceedings across the DFW Metroplex.
What We Do

Our Family Law Investigative Services

Infidelity Surveillance

Doubt is paralyzing. We provide high-tech, low-profile surveillance that documents conduct relevant to an infidelity matter in a format courts and mediators recognize as credible. Our services are inclusive of all relationship types — ceremonial marriage, common law, same-sex, and non-married partnerships. High-definition video documenting inclination and opportunity, maintained to full chain-of-custody standards.

Pre-Divorce Investigations

Before a petition is ever filed, the right intelligence can protect your interests. We help clients quietly establish patterns of conduct, identify undisclosed relationships, and document lifestyle and spending behavior so that you and your counsel enter proceedings fully informed rather than reacting after the fact. Pre-divorce investigations are most effective when initiated before the filing becomes public — giving your legal team the advantage before the process turns adversarial.

A conceptual image for an asset recovery investigation, showing a magnifying glass over complex financial spreadsheets and a map of the DFW Metroplex on a mahogany desk.

Asset Searches & Financial Forensics

Hidden accounts, undervalued business interests, and undisclosed property are common features of contested divorces involving significant assets. We identify what is there, document where it is, and produce findings that give your attorney a foundation for financial discovery requests. Community property that cannot be found cannot be divided fairly — and our investigations are designed specifically to close that gap.

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Child Custody, Abuse & Neglect Documentation

Nothing is more important than the safety of a child. In custody, abuse, and neglect matters, we document the conditions and conduct that courts care about: supervision quality, living environment, the presence of unsafe individuals, and adherence to existing court orders. Our findings are gathered lawfully and presented objectively so they can support a parent's case and, above all, protect the child's well-being. We never embellish or editorialize — the facts speak, and we ensure they are documented clearly.

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Parental Fitness Investigations

When the fitness of a parent is genuinely in question, objective documentation is the only way to establish or challenge that claim with credibility. We observe and document parenting conduct, living conditions, the people present in a child's environment, and compliance with custody arrangements — providing the factual record a court needs to make an informed decision about a child's placement.

A professional and high-end hero image for Armstrong Investigations, PLLC, featuring the Dallas and Fort Worth skylines at dusk with a gavel and magnifying glass on a polished desk, symbolizing legal and investigative authority.

Lifestyle Analysis & Standard of Living Documentation

In contested divorces, establishing the marital standard of living or documenting financial waste can be critical to property division and support determinations. We document spending patterns, lifestyle conduct, and activity inconsistent with claimed financial circumstances — producing objective evidence that your attorney can reference in negotiations or present in court.

Why It Matters

Discretion, Objectivity, and Evidence That Holds Up

Domestic investigations require a different kind of discipline than most investigative work. The subject matters are personal, the emotional stakes are high, and the legal standards governing what evidence is actually usable are demanding. An investigation that is conducted carelessly — or one that crosses legal limits — doesn’t just fail to help. It can actively harm your case.

Armstrong Investigations approaches every domestic matter with three principles in place.

Discretion first. Our operational security means our involvement remains known only to those who need to know. We do not take actions that alert a subject, compromise an investigation, or create exposure for our clients.

Objective documentation. We document what we observe. We do not editorialize, embellish, or pursue a narrative. Courts respond to factual records — and so do mediators and opposing counsel. An objective file is more credible and more durable than one that appears agenda-driven.

Admissibility built in. Jasen A. Armstrong holds a Juris Doctor (J.D.) degree and brings a law-trained perspective to how evidence is gathered and documented throughout every engagement. Evidence planning is built into the investigation from day one — not added at the delivery stage. 

Jasen A. Armstrong holds a Juris Doctor (J.D.) degree, is not licensed to practice law in Texas, and does not provide legal advice or legal representation. Armstrong Investigations, PLLC provides private investigation services only.
An expansive aerial view of the Dallas and Fort Worth skylines at sunset, representing the wide service area of Armstrong Investigations across the DFW Metroplex.
Where We Operate

Family Law Investigation Coverage Across North Texas

We serve individuals and family law attorneys throughout the Dallas-Fort Worth Metroplex and North Texas. Domestic cases do not respect county lines — and neither does our coverage.
Dallas County
Tarrant County
Collin County
Denton County
Rockwall County
Ellis County
Johnson County
Kaufman County
Parker County
Wise County
Hunt County
Navarro County
Henderson County
Hood County
Somervell County
Erath County
Palo Pinto County
National Affiliates
Operations that require coverage beyond North Texas are coordinated through our national affiliate network.
Ready to Get Started?

Your Facts Deserve to Be Documented Correctly

Every family law matter involves stakes that are personal, financial, and sometimes urgent. Armstrong Investigations handles the most sensitive domestic matters with complete discretion and produces evidence files that reflect the standard your legal proceedings demand. Contact us today for a confidential consultation.