Getting Finance
Document special angel rights without rewriting the whole round
Fixed-fee legal help with an angel investor side letter, including investor-specific rights and fit with the wider round.
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What's included
Support for the side letter and the deal points around it
A fixed fee service covering the side letter itself, the investor-specific terms it records and the key interaction points with the wider fundraising documents.
- Consultation on the proposed investor-specific terms
- Drafting a bespoke angel investor side letter
- Legal input on rights such as information access, observer rights or deal-specific commitments
- Review of how the side letter interacts with the wider round documents
- One round of revisions to refine the wording
Project
Angel Investor Side Letter
Status
CompletePrepared by
Alex Solo
Senior Lawyer

FAQs
Frequently asked questions
Unsure about how we work? We have gathered the most common questions for your convenience.
This is commonly used where a founder, company or investor has agreed a point that applies to one angel only, rather than to everyone participating in the round. That might involve enhanced information rights, a board observer role, a future participation right or another specific commitment. It can be useful for startups raising from a lead angel, strategic backer or existing supporter whose deal terms are slightly different from the rest. The aim is to record that separate arrangement clearly without turning the main investment documents into a patchwork of exceptions.
Emails and headline term sheets can show commercial intent, but they often leave too much room for argument later. A side letter is usually used where the detail matters, especially if the investor expects a continuing right after completion. If the wording is vague, the parties may disagree about whether the right is binding, when it applies, or whether it overrides the shareholders' agreement or subscription documents. That becomes more important in a later raise, a board disagreement or an exit, when informal wording is much harder to rely on in practice.
A side letter can look simple, but the main legal issue is often how it interacts with the rest of the round. We usually look at whether the special term cuts across investor equality, board control, consent mechanics, confidentiality obligations or future fundraising flexibility. Common examples include information rights, observer rights, most favoured nation wording and commitments around follow-on investment opportunities. We also check whether the side letter should be conditional on completion of the wider investment, because a standalone promise can create confusion if the round changes or does not complete.
Yes. Many clients come to us with investor mark-up, a precedent from an earlier round or a template found online. That can be a useful starting point, but side letters often go wrong when borrowed wording does not match the actual deal documents already in play. A clause that looks harmless on its own may conflict with reserved matters, information rights already granted to others or restrictions in the shareholders' agreement. We can use your draft as a base, then adjust it so the final document better reflects the commercial deal and document set.
Once the wording is settled, the next step is usually to line up signing with the wider completion process. In some rounds, the side letter is signed at the same time as the subscription and shareholder documents. In others, it may only take effect if the investment completes. We can help you think through those immediate document points, including whether cross-references or conditions should be added. The service does not cover indefinite post-signing support, ongoing representation in negotiations or wider management of the whole fundraising process.
Working with us is simple. Start by submitting an enquiry through our website using the form at the top of this page or on our Get Started page. A legal project manager will review your enquiry within 1 business day and reach out to understand your needs.
They'll send you a fixed fee quote outlining costs, scope, and timing. If you're happy, you can accept and sign our engagement letter online. Once that's done, we'll connect you with an expert lawyer who will complete your project via email, phone, or video chat, with the timing confirmed in your quote.
If you're not looking for help with a specific matter, explore our platform, which offers free templates, tools to get your business set up, and even a free tier to get started. Whether you need legal support or just want to browse resources, we've got you covered.
At Sprintlaw, our pricing is transparent and designed for startups and small businesses. Many one-off legal services, including document drafting and reviews, are provided for a fixed fee with an upfront quote before you proceed.
Prices typically range from £100 to £1,500 depending on the complexity and scope of the work. For ongoing support, Sprintlaw Memberships include options such as legal templates, consultations, a legal helpline and credits for services.
If your project is larger or more complex, we will provide a tailored quote after understanding what you need.
Sprintlaw UK operates fully virtually, with the team working online across the UK to provide support to startups and small businesses nationwide. Many of our team are based in London and often meet at co-working offices, but our operations remain fully digital, ensuring flexibility and efficiency for both our clients and team.
From quote to delivery in three simple steps
Getting quality legal help for your business has never been easier or more affordable.
Get a free quote
Our legally trained consultants will prepare a fixed-fee quote for you.
Accept online
Accept your fixed-fee quote and e-sign our engagement letter.
Speak with a lawyer
Our expert lawyers will talk you through your project via phone, video call or whatever suits.
Get a free quote
Our legally trained consultants will prepare a fixed-fee quote for you.
Accept online
Accept your fixed-fee quote and e-sign our engagement letter.
Speak with a lawyer
Our expert lawyers will talk you through your project via phone, video call or whatever suits.
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