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Trusted Legal Investigative Services in Palm Beach Gardens
We are a preeminent provider of investigative, research, and litigation support services tailored specifically for trial lawyers, criminal defense attorneys, family law practitioners, and probate specialists. Founded on the principle of delivering comprehensive investigative solutions through a team-based approach, we leverage over 80 years of combined experience across public and private sectors to address complex legal challenges. Our focus on civil, criminal, family, and probate law enables us to achieve economies of scale while maintaining rigorous ethical standards.

We collaborate with trusted affiliates for specialized services like process serving and surveillance, ensuring seamless case management. Our commitment to technological innovation and methodical research empowers attorneys with actionable intelligence, fostering successful litigation outcomes globally.
Services
Civil Law Investigation Criminal Law Investigation Family Law Investigation Probate Law Investigation Witness Interviews Background Checks Document Retrieval Accident Scene Investigation Litigation Support Process Serving
Highlights and features
  • We offer over 80 years of combined investigative experience in uncovering liability and reasonable doubt.
  • Our team provides accurate, reliable, and timely information critical for case litigation.
  • We deliver complete service from intake to final disposition with ethical and professional standards.
  • Our staff operates as adjunct investigators for law firms, ensuring close collaboration and communication.
  • We specialize in civil, criminal, family, and probate law investigations with global reach.
Associations and certifications
  • Certified Legal Investigators
What people say
Professional, ethical work Favorable outcomes Thorough and timely Cost-effective investigations Unparalleled work product
Services
Civil Law Investigation
We conduct comprehensive civil law investigations including witness interviews, asset checks, and document retrieval. Our team uncovers critical facts to strengthen litigation strategies and settlement negotiations. Attorneys rely on our detailed reports to resolve disputes involving contracts, personal injury, and business conflicts.
Criminal Law Investigation
Our criminal defense investigations focus on gathering exculpatory evidence, interviewing witnesses, and analyzing case facts. We assist attorneys with complex cases involving federal and state charges, providing methodical research to challenge prosecutions and secure favorable plea agreements or trial outcomes.
Family Law Investigation
We specialize in family law matters including custody disputes, asset division, and domestic abuse cases. Our investigators gather evidence discreetly and ethically, providing attorneys with actionable intelligence to protect clients' interests during divorce or child custody proceedings.
Probate Law Investigation
Our probate investigations focus on estate disputes, will validity, and asset tracing. We help attorneys uncover financial misconduct, locate missing heirs, and document beneficiary claims through thorough research and witness testimony collection.
Litigation Support
We provide end-to-end litigation support including evidence organization, trial preparation, and expert witness coordination. Our team manages complex case logistics, ensuring attorneys receive timely, well-documented materials to strengthen courtroom presentations and settlement negotiations.
People
Mark Murnan
Founder
With over 40 years of investigative experience, Mark Murnan established Complete Legal Investigations to provide specialized support for legal professionals. His expertise in uncovering critical evidence has helped attorneys achieve favorable verdicts in complex civil and criminal cases globally.
Kenneth N. Johnson
Esq.
A satisfied client with Klett, Mesches & Johnson, P.L., who has collaborated with CLI for multiple years. He specifically praises their ethical work and ability to deliver favorable outcomes through thorough investigative work.
Questions
What services does Complete Legal Investigations offer?
We provide civil, criminal, family, and probate law investigations, including witness interviews, document retrieval, background checks, and litigation support tailored to attorneys' needs.
How experienced is your investigative team?
Our staff collectively offers over 80 years of experience in legal investigations, specializing in uncovering liability and reasonable doubt for complex cases.
Do you handle urgent or last-minute investigations?
Yes, we offer 24/7 services and have successfully completed time-sensitive assignments, including subpoena coordination and trial-eve evidence gathering.
What areas do you serve?
While based in Palm Beach Gardens, Florida, we provide investigative services locally, nationally, and internationally to support global legal challenges.
How do you ensure quality and reliability?
We maintain strict ethical standards, employ certified investigators, and use advanced research methodologies to deliver accurate, court-ready findings consistently.