Alteration agreement

Process & Planning

How to Read an Alteration Agreement in NYC

For co-op and condo living, a close look at the contract—including why it exists

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Renovation Conversations

Q&A with Jean: What Is an Alteration Agreement?

Find out what an alteration agreement is

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Advice & FAQs

Renovating? Here’s How to Navigate a Co-op Board

Follow these tips from Sweeten to get your co-op board to a "yes" for your renovation

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