Fixed-rate mortgages offer stability in your mortgage payments. However, many ARMs start with a lower interest rate than fixed mortgages and lock the rate in for a few years. That can mean significantly lower payments in the early years of your loan, so some borrowers opt for an ARM with the intention of selling or refinancing their home before the rate can adjust.
Typically, you'll need a minimum of a 620 FICO score to qualify for a conventional mortgage, and it can be difficult to qualify with a score that's near the minimum if your other qualifications aren't stellar. Another option is the FHA mortgage, which is designed for borrowers with qualifications that don't meet the standards of conventional lenders. The downside is that FHA loans can be significantly more expensive, but they can be great resources for people who otherwise wouldn't be able to qualify for a mortgage.
The programs vary in what they can offer. In some cases direct financial assistance may be provided to help you pay your mortgage for a short period of time. Payment plans or reduced monthly payments may be offered. However most of the government programs and non-profit organizations will help facilitate some form of loan modification to qualified homeowners. This will provide families time to get back on track by ideally lowering their monthly payment, reducing interest rates or waiving fees.