In general, the documentation you will need includes:
Check or credit card for application fee
Property Information (if you already have a contract on a house)
If you are selling your current home, copy of listing contract.
If you have sold your current home, copy of settlement statement (HUD-1).
Income & Assets
Pay stubs for the last 30 days.
For the past two years:
Statements for each bank, mutual fund, and/or investment account for the last three months.
If you have made any large deposits to your accounts:
If you own more than 25% of a business:
If you own rental property:
If you are retired:
If you receive Social Security:
If you are counting child support as income:
Names, addresses, account numbers, balances and monthly payments on all current loans.
Explanation of credit report anomalies, including:
Copy of DD Form 214, Report of Separation.
Photo ID and proof of Social Security number.
Residence addresses for the past two years.
If applicable, a copy of your divorce decree.
If you are not a citizen, a copy of the front and back of your green card.