Hub 02 · Defense / Litigation Support·NY · PA

Expert witness mold testing

For litigation teams needing a credentialed environmental expert to issue reports, write declarations, or testify at deposition or trial.

Request litigation intake (716) 410-6767

ExpertMason Bridges

ScopeMold · IAQ · Asbestos · Phase I

DisclosureOn retention

CoverageNY · PA

How it works in NY & PA

Mason Bridges is the named expert witness for Environmental Air Solutions. Available as expert on environmental matters within his testing experience and methodology scope: mold assessment and indoor air quality (handling mold testing engagements since 2017); asbestos surveying (EPA AHERA-certified); Phase I Environmental Site Assessments (ASTM E1527-21); water-damage causation analysis; and post-remediation clearance testing. Outside scope (handled by separate credentialed referrals as needed): medical / clinical opinions on mold-related illness (referrals to CIH or board-certified medical specialists); structural engineering opinion; legal interpretation; toxicology beyond standard environmental analyte panels. Available for: case consultation (confidential, pre-retention), document review, deposition preparation, deposition testimony, trial testimony, post-trial briefing review. Both NY (Buffalo, Western NY federal districts) and PA (Erie, Pittsburgh, Western PA federal districts) admitted.

Who this is for

Common scenarios

Plaintiff attorneys in mold-injury cases
Defense attorneys representing landlords / property managers / insurance carriers
Co-counsel retaining environmental expert as part of broader expert team
Pro se litigants in tenant habitability matters (limited scope)
Insurance carriers retaining for claim-period valuation

— — Why Environmental Air Solutions

The wedge

→AHERA-protocol asbestos testing + AIHA-EMLAP lab partners
→8 years of field assessment work (2017-present). Direct sampling experience, not just expert-witness career
→AIHA-accredited lab partnerships for any current sampling needed during litigation
→NY + PA dual-state experience
→Retainer rate + fee schedule + CV provided on engagement

Regulatory references

Federal Rule of Evidence 702 (Daubert)
Federal Rule of Civil Procedure 26 (Expert Disclosure)
NY CPLR Article 31 (Disclosure)

Common questions

About this service

What's your retainer arrangement?

Standard retainer for case intake is $2,500-$5,000 depending on case complexity and timeline. Hourly billing thereafter at the published expert rate (provided on retention). Detailed fee schedule and prior testimony list included in CV packet sent on initial retention discussion.

Have you testified before?

Prior testimony list provided on retention. Yes. Both deposition and trial. Both plaintiff and defense retention.

Can you offer medical opinions on mold exposure?

No. Medical opinion on whether a specific environmental finding caused a specific health outcome requires medical/clinical licensure I do not hold. I can provide opinion on the environmental conditions themselves (species, exposure level, duration, comparison to industry benchmarks), but the medical causation link is a matter for a board-certified medical specialist or CIH-credentialed Industrial Hygienist with clinical scope.

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