4 legal mistakes that can kill your startup (before you even raise) l Build Mode

Setting up a sound legal foundation could be what saves a startup down the line. A missing founder vesting agreement, an unclear IP agreement, or a messy cap table can derail fundraising, spark co-founder disputes, or even kill an otherwise promising company before it has a chance to scale.

In this episode of Build Mode, host Isabelle Johannesen sits down with Kristina Subbotinai, founder and CEO of Lesxy and former startup attorney at Cooley, to break down the legal fundamentals every founder needs to get right.

Chapters:
00:00 – Intro: The Legal Mistakes That Kill Startups
01:37 – Why Kristina built Lexsy
03:58 – The Legal Foundations Every Startup Needs
08:22 – How to Find the Right Startup Lawyer
10:21 – The Four Non-Negotiable Legal Decisions
17:33 – What Investors Look for During Due Diligence
20:04 – SAFE Notes vs. Priced Rounds
22:18 – Negotiating Valuation Without Losing Control
25:25 – Board Seats, Investor Rights, and Hidden Term Sheet Traps
30:51 – Should Founders Use AI for Legal Advice?
31:04 – How Founders Build Leverage in Fundraising
35:48 – The Terms That Can Destroy Founder Wealth
37:01 – The Craziest Startup Legal Story Kristina Has Ever Seen

Hosted by Isabelle Johannessen. Produced and edited by Maggie Nye. Audience development led by Morgan Little. Special thanks to the Foundry and Cheddar video teams.