You should keep a copy of every document related to the transaction.  Here’s a list of important ones commonly given – you may receive additional documents depending on your transaction.

• HUD-1 Settlement Statement – this is the document with all of the closing costs itemized
• Title Insurance Policy – this is provided by the title company and outlines what they will and will not cover in case a defect to title is later discovered.  For example, if someone later shows up claiming the land belongs to them.
• Deed – a deed is a legal document that conveys title to real property from one party to another.  This shows that ownership has transferred from seller to buyer.
• Survey – documents the legal description of a property with its boundaries noted and must be created by a registered land surveyor.  There must be a valid survey when transferring property otherwise either buyer or seller will have to pay for one.  You should keep your copy to avoid having to negotiate who will pay later down the road if you sell.  Also, if the property is changed (i.e. by adding a pool) while you own it, the survey may no longer be valid and you will have to have a new one created.
• Affidavits – these are notarized copies of statements that you are agreeing to.  They are legal and binding – make sure that you know what they are saying and that you keep copies of them.  An example would be the “Residential Real Property Affidavit” stating that there’s been no changes to the property or providing a list of known changes.
• Truth in Lending Statement (if buying)- your mortgage company is required by law to provide this and it summarizes the terms of your loan including the APR and amount financed.
• Mortgage Note (if buying) – this is your promise to pay the loan and includes important information related to the loan
• Mortgage Documents (if buying) - keep all other documents related to your mortgage
• Homeowners Insurance (if buying) – there should be an app or other document describing your coverage.  You should receive the complete policy soon after closing.

In addition, be sure to keep a copy of the sales contract, addenda, agreements, and other documents given to you by your real estate agent.  I also highly recommend keeping any documents from your mortgage company showing that the existing mortgage has been paid (if you’re the selling party).