Commercial Purchase/Sale Addendum Template (Simple)

Amend a commercial property purchase contract: due diligence extensions, price or deposit changes, estoppels, leases, environmental and closing terms.

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Simple Full Plain-English Summary

Simple: a 1–2 page short form with just the core terms.

This template is not legal advice; consult a licensed attorney in your state. Laws, required disclosures and signing formalities (witnesses, notarization, recording) vary by state and county.
E-Sign Auto is not a law firm and does not provide legal advice.

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1. Parties2. Details 1/33. Details 2/34. Details 3/3

Parties

Signing order: Buyer → Seller. Each signer is invited after the previous one signs.

1. BuyerFull name *Email (to send the signing link)

2. SellerFull name *Email (to send the signing link)

Signature, date and name fields are added for every signer automatically.

Details 1/3

Addendum date *Addendum number *Date of original purchase agreement *Buyer entity *Seller entity *Property address and parcel number

Details 2/3

New purchase price ($, blank if unchanged)Additional deposit ($) *New due diligence expiration *New closing date *Tenant estoppels / SNDAs requiredEnvironmental (Phase I/II) terms

Details 3/3

Other added or changed termsState-required disclosures / transfer tax allocation [STATE-SPECIFIC]Governing state *County for venue [STATE-SPECIFIC] *

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Signature, initials (every page) and date fields are placed for each party. You can review and adjust them before sending.

Live preview

What the sections mean (plain English)

PURCHASE PRICE: How much is paid, when, and what happens if it's late.
DEPOSIT: Money held up front and when it's returned or kept.
CLOSING: When and how the deal is finalized and who gets the keys.
DISCLOSURES AND TRANSFER TAXES [STATE-SPECIFIC]: Information the law may require one side to give the other; your state may require specific forms.
GOVERNING LAW AND VENUE: Which state's law applies and where any lawsuit must be filed.
COUNTERPARTS; ELECTRONIC SIGNATURES: E-signatures are valid and each party can sign separately.
DISPUTE RESOLUTION: How disagreements get handled before anyone goes to court.
SEVERABILITY: If a court strikes one clause, the rest still counts.
ENTIRE AGREEMENT; AMENDMENTS: How this document can be changed later.
NOTICES: How the parties must officially contact each other.
Optional clauses: Extra terms you can switch on or off in step 3. Leave them off if unsure.

How to use this Commercial Purchase/Sale Addendum template

Answer the guided questions. Your name and company fill in automatically from your profile.
Pick the governing state and complete the [STATE-SPECIFIC] blanks. Switch optional clauses on or off.
Check the live preview, then create the document. Signature, initial and date fields are placed for each party.
Review the fields and send. Each party signs in order, and everyone gets the signed PDF.

Frequently asked questions

Is this Commercial Purchase/Sale Addendum template free?

Yes. You can fill it in, download it and send it for electronic signature with a free E-Sign Auto account.

Is an electronically signed Commercial Purchase/Sale Addendum legally binding?

In the U.S., the federal ESIGN Act and state UETA laws generally give e-signatures the same effect as handwritten ones. Check your state's rules.

Does this template work in my state?

It is a generic, state-neutral starting point. Pick your governing state and complete every blank marked [STATE-SPECIFIC]. This template is not legal advice; consult a licensed attorney in your state.

Who signs, and in what order?

Buyer, then Seller. Each signer gets a secure link in that order, with signature, initial and date fields already placed.