Montegna & ThickstunA Partnership of Law Corporations

About the Firm

A partnership built on experience.

Montegna & Thickstun is a partnership of California professional law corporations representing clients in mass torts and personal injury.

Gregory A. Montegna, Esq., Partner at Montegna & Thickstun

Gregory A. Montegna, Esq.
Partner

Gregory A. Montegna, Esq.

Greg has practiced law in California for more than four decades, with a focus on personal-injury litigation and mass-tort matters. He brings deep experience with the coordinated proceedings — Judicial Council Coordinated Proceedings in California, federal Multidistrict Litigation, and similar structures — that govern most large-scale tort cases, and the case-management discipline that those proceedings demand.

Greg practices through his own California professional law corporation, partnered with the corporation of John Thickstun under the Montegna & Thickstun name.

Bar Admission

  • State Bar of California

John E. Thickstun, Esq., Partner at Montegna & Thickstun

John E. Thickstun, Esq.
Partner

John E. Thickstun, Esq.

John has practiced law in California for more than four decades, with a focus on personal-injury litigation and mass-tort matters. He brings the perspective of a long career spent on the kinds of matters the Firm handles, and the judgment that comes with it.

John practices through his own California professional law corporation, partnered with the corporation of Greg Montegna under the Montegna & Thickstun name.

Bar Admission

  • State Bar of California

Matthew R. Tollestrup, Esq., Of Counsel to Montegna & Thickstun

Matthew R. Tollestrup, Esq.
Of Counsel

Matthew R. Tollestrup, Esq.

Matt works with the Firm's mass-tortclients. His focus is the individual claim inside a large proceeding — making sure each client's losses are documented, valued, and carried through the coordinated process on schedule.

Coordinated proceedings run on volume. A single wildfire matter can involve thousands of claimants, each with their own property, their own losses, and their own proof requirements — and what any one of them recovers depends on how carefully that particular file is built. Matt does that per-client work: reconstructing what was there before the loss, developing the valuation that supports the claim, and tracking the orders and deadlines that govern it.

Technology in the service of the client

Matt builds the tools the Firm uses to do that work at scale. Rather than force client files through generic case-management software, he develops systems aimed at the problems mass-tort claims actually present — reconstructing pre-loss property characteristics from county assessor and market records, converting replacement-cost inventories to actual cash value under a consistent depreciation standard, developing fair-rental-value and loss-of-use figures, and monitoring court dockets for filings that affect clients.

The technology is not the point. The point is that a client whose claim is one of several thousand still gets a file built with the care a single case would receive — figures reconciled rather than rounded off, deadlines tracked rather than assumed, and no client's claim treated as a line item because the proceeding happens to be large.

Bar Admission

  • State Bar of California