Dispositions

How to draft a wholesale assignment contract addendum for specific terms

An addendum to a wholesale assignment contract allows you to incorporate specific terms or conditions not present in the original agreement. It must be clearly written, reference the main contract, and be signed by all parties to be legally binding.

October 14, 2026 · 3 min read

What an addendum is and why you need one

An addendum is a written document that modifies or adds to the terms of an existing contract. It becomes a part of the original agreement once signed by all involved parties. For wholesale assignments, addendums are vital for clarity and to address unforeseen circumstances or new agreements.

You might need an addendum to clarify property condition, extend a closing date, amend the assignment fee, or include specific repair credits. It ensures all parties are on the same page about any changes or new details.

When you will typically need an addendum

You will often need an addendum when details change after the initial purchase and sale agreement is signed, but before the assignment to your cash buyer is complete. This could be due to a new discovery during due diligence, a seller request, or a buyer's specific requirement.

Common scenarios include adjusting the purchase price after a walkthrough, extending a due diligence period, or specifying who is responsible for a particular repair. Any alteration from the original contract's terms should be documented in an addendum.

Key elements of a well-drafted addendum

A good addendum should clearly state it is an addendum to a specific contract, referencing the original agreement by date, property address, and parties involved. It needs a clear, concise title indicating its purpose, like 'Addendum to Purchase and Sale Agreement – Closing Date Extension.'

The new terms must be unambiguous and replace or modify specific clauses of the original contract. For example, 'Paragraph 5.1, Closing Date, shall hereby be amended to read: 'Closing shall occur on or before [New Date]'. It must conclude with signature lines for all original parties, plus the date signed. This is not legal advice; always consult with a legal professional for your specific situation.

Working with an attorney on addendums

While you might be tempted to draft simple addendums yourself, it is always prudent to have an attorney review or draft them. An attorney ensures the addendum is legally sound, consistent with the original contract, and protects your interests.

The legal implications of poorly worded addendums can be significant, potentially invalidating parts of your contract or creating ambiguities that lead to disputes. Investing in legal counsel here can save you substantial headaches and money down the line. This is not legal advice; consult with a legal professional for your specific situation.

Avoiding common addendum mistakes

One common mistake is failing to have all relevant parties sign the addendum, rendering it unenforceable. Another is using vague language that can be misinterpreted, such as 'seller will fix things' instead of 'seller will replace the broken water heater before closing.'

Never assume a verbal agreement is sufficient; all changes must be in writing and signed. Also, avoid creating conflicting terms between the original contract and the addendum without explicitly stating which takes precedence. Clarity and completeness are your best defense against future issues. This is not legal advice; consult with a legal professional for your specific situation.

Questions people ask

Can I just write an addendum myself?

While you can, it is strongly recommended to have an attorney draft or review any addendum to ensure it is legally sound, properly worded, and fully enforceable. This is not legal advice.

What if the original contract forbids addendums?

Most standard real estate contracts allow for addendums. If yours explicitly forbids them, you would need to draft a new contract, or get specific legal advice on how to proceed. This is not legal advice.

How many addendums can I have?

There is no limit to the number of addendums you can have, but each one must be properly executed. Too many can make the contract convoluted, so aim for clarity and consolidation where possible. This is not legal advice.