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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,…

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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.

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4 Comments

4 Comments

  1. @breaktherules6035

    August 6, 2026 at 4:09 pm

    Excellent insights!!! THANK YOU!!!

  2. @datacoderX

    August 6, 2026 at 10:43 pm

    Unfiaxble legal errors. Ok.

  3. @sdmarlow3926

    August 6, 2026 at 11:25 pm

    A c-corp isn’t a legal company until someone buys shares, so a founder is going to do that the first week. A 5 year vesting schedule seems standard (cliff + 4). They also need to file the 83(b) election with the IRS while those shares are less than a thousand dollars (ex; $500 for 5 million shares). Copy of the filing needs to be part of corp record. IP assignment is also a basic workplace policy (though it’s interesting to look at ZeniMax vs Oculus, as Carmack was public about his efforts to build the VR tech/software while at id software, even on-site). Doubly so for a technical founder. For a lot of VC’s, you just need to be big enough to be purchased by a bigger fish at a high than normal valuation, so I don’t agree with the Delaware incorporation idea. Worse, founders have a way of being the first one shown the door once there are signs of market fit, or demand by VC’s/directors that the company pivot in a direction the founder doesn’t want. A Delaware court system will favor the board members. Not legal advice, but dilution and director seats are a priority long before you get to series c or d funding rounds that might require switching to Delaware, or maybe a decade or more before you IPO. Not a startup killing issue.

  4. @KristinaSubbotinaEsq

    August 7, 2026 at 2:02 pm

    Thank you for having me!

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Windows, Surface and Nvidia Event Highlights: Everything Announced in 16 Minutes

Watch Microsoft CEO Satya Nadella and the Windows team introduce the next era for the OS, including more trustworthy AI agents, the Surface Laptop Ultra and Nvidia-powered laptops and PCs for creators and developers. Read more about the Windows Event on CNET.com Surface Laptop Ultra Preorders: Everything Announced at Microsoft’s Windows and Surface Event Timecode…

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Watch Microsoft CEO Satya Nadella and the Windows team introduce the next era for the OS, including more trustworthy AI agents, the Surface Laptop Ultra and Nvidia-powered laptops and PCs for creators and developers.

Read more about the Windows Event on CNET.com
Surface Laptop Ultra Preorders: Everything Announced at Microsoft’s Windows and Surface Event

Timecode Chapters:
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15:10 NVIDIA DGX Station for Windows & Desk-Side AI Performance

Video Credits:
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Video Editor: Stephen Beacham
Thumbnail Designer:

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Unboxing the $1,199 Dell XPS Googlebook

The smallest of the Googlebooks, the XPS has the same high-end look and feel as the XPS 13 Windows laptop. It has a great design with a full aluminum body that weighs 2.2 pounds. Some notable specs: 💻 Qualcomm Snapdragon X Elite 💻 16 or 32GB of memory 💻 512GB of storage 💻 13.4-inch 2.5K-resolution…

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The smallest of the Googlebooks, the XPS has the same high-end look and feel as the XPS 13 Windows laptop. It has a great design with a full aluminum body that weighs 2.2 pounds.

Some notable specs:

💻 Qualcomm Snapdragon X Elite
💻 16 or 32GB of memory
💻 512GB of storage
💻 13.4-inch 2.5K-resolution touchscreen, 500-nit brightness
💻 Fingerprint reader

Unbox it with us. #unboxing #dell #googlebook #dellxps #android

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How to Claim ALL Your Amazon Prime Freebies

In this video, you will learn about every free perk available in your Amazon Prime account, along with some deeply discounted offers that most people are not aware of. From credits toward free movie rentals to free PC Game downloads and free Grubhub delivery fees, the Amazon Prime freebies listed in this video make the…

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In this video, you will learn about every free perk available in your Amazon Prime account, along with some deeply discounted offers that most people are not aware of. From credits toward free movie rentals to free PC Game downloads and free Grubhub delivery fees, the Amazon Prime freebies listed in this video make the annual subscription price a little more palatable.

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Everything that comes with your Prime membership

Timecode Chapters:
0:00 Introduction: Is Amazon Prime Worth It?
0:30 Category 1: Digital Entertainment & Media Freebies
0:36 Amazon Prime Video with NFL Thursday Night Football
0:42 Amazon Music Prime
0:50 Prime Reading
1:01 Amazon First Reads
1:12 Amazon Photos
1:20 How to Set Up Amazon Photos Auto-Backup
1:51 Ctegory 2: Dining, Travel and Daily Perks
1:55 Free Grubhub+ membership for free delivery fees
2:14 Gas/Fuel Savings with the Earnify App
2:39 Category 3: Gaming & Tech Freebies
2:42 Prime Gaming Free Monthly PC Game
2:51 Free Twitch Channel Subscription
2:55 Amazon Luna Cloud Gaming
3:02 Category 4: Delivery & Registry Extras
3:06 Amazon No-Rush Shipping Digital Promotional Credits
3:27 Release Date Delivery
3:38 Baby Registry Free Welcome Box
3:58 Amazon Key In-Garage Delivery
4:09 Category 5: Household Sharing & Exclusive Savings
4:13 Amazon Family Sharing
4:26 Whole Foods & Amazon Fresh Savings
4:37 Early Lightning Deals Access
4:45 Free Woot! Shipping
4:54 Category 6: Discounted Add-On Health Perks
5:01 RXPass Prescription Drug Subscriptions
5:08 One Medical Membership
5:21 Final Thoughts & Outro

Video Credits:
Produced By: Stephen Beacham
Thumbnail Designer: Zooey Liao

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