For a primary home purchase, you will need a purchase contract or an agreement with a contractor (if building a home) dated within 30 days.
For non-reimbursed medical expenses, you will need an Explanation of Benefits (EOB) statement dated within two years.
For tuition, room, and board, you will need a summary of tuition-related expenses statement provided by the school dated within four months of the beginning of the quarter or semester.
For preventing an eviction or foreclosure, you will need a statement indicating that you are past due on mortgage or rent payments and a letter from your financial institution or landlord that mentions eviction or foreclosure dated within the last four months.