The document outlines various asset sources that can and cannot be used for mortgage loan funding and the documentation required to verify each acceptable source. Acceptable sources include checking and savings account balances verified by bank statements, retirement account balances, gifts, inheritances, proceeds from real estate or other asset sales, and trust distributions. Unacceptable sources are things like unsecured loans, credit card cash advances, or cash on hand without sufficient documentation and history of use of financial institutions. Foreign funds must be deposited in a US bank and verified using an exchange rate from a financial institution.