Expert Witness Testimony · NYC & NY State Courts

Opposing Counsel may not even have an expert; with us, you gain an expert who cares and excels.

A finding is only as strong as the expert defending it under pressure. Frank S. Ferrantello, PLS, has testified across five NYC counties, NY State Supreme Court, and numerous Long Island courts and zoning boards. He brings that same tested composure to every testimony he presents.

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The Stakes

Anyone can produce a survey. What separates an expert witness from a technician is what happens twenty minutes into cross-examination, when opposing counsel starts probing for the one inconsistency that unravels everything. Technical accuracy gets you in the door. The ability to explain that accuracy clearly, calmly, and consistently under hostile questioning is what actually wins the room.

That composure isn’t theoretical here; it’s been tested directly, in courtrooms and hearing rooms across the metro area, on cases where the findings mattered as much as the testimony delivering them.

Our Methodology

Deposition-ready reporting

Written from the outset to anticipate scrutiny rather than merely survive it

Color court exhibits

Translating dense technical survey data into visuals a non-technical jury can grasp immediately

Direct courtroom and hearing experience

Including testimony before NY State Supreme Court, Nassau County Civil Court, and numerous town and village zoning and planning boards

Plain-language explanation

of technical findings, calibrated for adjusters, mediators, judges, and juries alike

Who This Is For

Trial counsel who need a witness with a genuine courtroom track record, not just credentials on paper

Mediators and settlement teams who need clear visual evidence to move negotiations forward

Defense and plaintiff-side counsel alike, wherever technical survey findings sit at the center of the case

What You Get

A deposition-ready expert report

Color, annotated litigation exhibits built for clarity under pressure

In-person or remote expert testimony

Pre-trial consultation and case strategy support

Related Services

  • Premises Liability & §7-210 Sidewalk Defense
  • Boundary Disputes & Easement Analysis
  • Land & Building Surveying & Mapping
  • Trip & Fall, Slip & Fall
  • Accident & Site Mapping
  • Adverse Possession
  • Right of Way & Easements
  • Zoning & Land Use Planning
  • Flood Plain, Elevation, Datum & Grading Drainage Issues
  • Land Development & Earthwork
  • Utility & Mark Out Issues
  • Professional Negligence
  • Standard of Care Evaluation

Frequently Asked Questions (FAQs)

Composure under pressure. Technical accuracy is the baseline everyone should meet; what actually holds up in a deposition or on the stand is the ability to explain complex findings in plain language and defend them consistently, no matter how the questioning is angled.

Often more useful there than at trial itself. A clear, visual exhibit tends to accelerate settlement negotiations by replacing a dispute over impressions with a finding both sides can actually see and understand.

Over 26 years of professional practice, including direct testimony and affidavit work across multiple NYC county courts, New York State Supreme Court, and throughout Long Island.

Both, ideally. Early involvement lets the findings and exhibits get shaped around the specific legal argument being built, rather than handing counsel a finished report and asking them to work backward from it.

That’s precisely the scenario deposition-ready reporting is built for: every finding is documented with the methodology and reasoning transparent enough to defend directly against a competing expert’s conclusions, not just to state a result.

Hire the Expert Who's Already Been Cross-examined & Is Still Standing.

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