Contact

OUR PEOPLE

Big-firm training. In-house experience.

Our attorneys trained at leading law firms and have run legal inside companies, from startups to the Fortune 50. We know what a good document looks like and what the business needs from it.

Isaac Wall

FOUNDER & MANAGING ATTORNEY

Isaac J. Wall

M&A · Venture capital · Emerging companies · Commercial contracts

“Isaac is a phenomenally commercial attorney and a strong voice of reason in high-intensity moments.”

Sina Chehrazi · Founder, Nayya Health

Isaac founded Parallax after more than a decade in corporate and M&A practice—eight years at Goodwin Procter, Sidley Austin and Allens Linklaters, then in-house as General Counsel at Nayya Health and Head of M&A and Corporate Counsel at Fuze Health.

Isaac founded Parallax Law to give founders the quality of a top deal firm at a price and pace that work for a startup.

He spent eight years at Goodwin Procter, Sidley Austin and Allens Linklaters, then moved in-house as General Counsel at Nayya Health and Head of M&A and Corporate Counsel at Fuze Health. Inside those companies he saw how legal advice lands with a business: what helps, what slows things down, and where the real risk sits.

He has advised on more than $35 billion in M&A transactions and closed more than $3 billion in debt and equity financings,* across software, healthcare, fintech, AI, crypto, industrials and real estate. His practice covers M&A, venture financings, emerging companies and complex commercial contracts.

Experience

  • Fuze Health—Head of M&A and Corporate Counsel, 2025–2026
  • Nayya Health—General Counsel, 2024–2025
  • Goodwin Procter—Tech M&A and ECVC, 2021–2024
  • Sidley Austin—M&A and private equity, 2020–2021
  • Allens Linklaters—M&A and private equity, 2016–2020

Credentials

  • New York Bar
  • Supreme Court of NSW
  • High Court of Australia
  • LLB, First Class Honors
  • B.Com (Finance), Distinction

*Includes experience at prior firms and in-house. Prior results do not guarantee a similar outcome.

THE TEAM

The team.

BD

Ben Diamond

Senior Commercial Counsel

Ben has spent most of his career in-house, building and leading commercial legal teams at Transcarent, CVS Health and Aetna. He knows what enterprise customers look for in a contract and how to get a deal through their procurement process.

Read full bioClose bio for Ben Diamond

Ben Diamond focuses on commercial contracts, privacy, data security, AI and HIPAA. He spent 12 years as Executive Director and Senior Counsel at Aetna and CVS Health, then served as Associate General Counsel at Transcarent, a high-growth health-tech company.

He has built and led commercial legal teams, overseen multibillion-dollar commercial transactions, and advised on technology, AI governance and regulatory compliance in heavily regulated industries. Having worked for both the enterprise buyer and the startup seller, Ben knows what large customers need from a contract and how to get a deal through their procurement process without slowing the business down.

SR

Shalina Rahman

Senior Corporate Counsel

Shalina advises technology companies and their investors on formations, financings and M&A. She joins Parallax from Goodwin’s Emerging Companies and Venture Capital practice, and previously practiced at Davis Polk & Wardwell in New York and Slaughter and May in London.

Read full bioClose bio for Shalina Rahman

Shalina Rahman advises emerging technology companies and their investors on corporate and venture transactions, from formation through financing and exit.

She has a decade of transactional experience in London and New York. She joins Parallax from Goodwin, where she spent nearly five years in the Emerging Companies and Venture Capital practice advising companies and venture investors on formations, equity issuances, convertible instruments and priced rounds. Before Goodwin, she practiced at Davis Polk & Wardwell in New York, and trained and qualified at Slaughter and May in London.

At Parallax, her work covers Delaware incorporations and founder equity, entity conversions and cap table reconstruction, restricted stock and option grants, SAFE and convertible note financings, cross-border securities analysis, and buy-side M&A.

Shalina is admitted in New York and as a solicitor in England and Wales.

XH

Ximena Herrera

Senior Contract Specialist

Ximena supports the firm’s commercial contract work, from first-pass review of customer, vendor and SaaS agreements through to execution. Foreign-qualified attorney; not admitted in New York.

Read full bioClose bio for Ximena Herrera

Ximena Herrera is Senior Contract Specialist at Parallax Law, supporting the firm’s commercial contract review work. She is a foreign-qualified attorney and is not admitted to practice in New York.

KS

Kaitlyn Smith

Senior Paralegal

Kaitlyn is a corporate and contracts paralegal with more than 14 years of experience across a wide range of legal matters.

Read full bioClose bio for Kaitlyn Smith

Kaitlyn is a corporate and contracts paralegal with more than 14 years of experience. She brings a close eye for detail and a thorough understanding of corporate and contract processes.

Outside work, she spends her time with her family and outdoors, and has a soft spot for animals.

CT

Chris Thompson

Senior Corporate Paralegal

Chris supports emerging companies with cap tables, financings, option grants and M&A.

Read full bioClose bio for Chris Thompson

Chris Thompson is a Senior Corporate Paralegal specializing in emerging companies. He supports the corporate team on cap tables, financings, option grants and M&A for early-stage clients.

SELECTED EXPERIENCE

Selected deals.

$500M

OpenEye Scientific

Sale to Cadence*

$1.1B

Inversago

Sale to Novo Nordisk*

Sale to IBM

Manta Software

Undisclosed transaction value*

$1.5B

PTC

Acquisition of ServiceMax*

$201.5M

Reonomy

Sale to Altus Group*

$55M

Nayya Health

Series C financing*

*Includes experience at prior firms and in-house. Prior results do not guarantee a similar outcome.

GET IN TOUCH

Tell us what you’re working on.

Book a call and we’ll tell you how we’d handle it and what it would cost.

Book a consultation ↗