Federal Loan Modification California-based $2,999 retainer?

Hairy Woo(bat)man asked: I am considering giving 2,999 dollars to federal loan modification program (based in Cali) to help me negotiate with my lender.
1. Is this a good company?
2. How much will they help?
3. They have said that they have a 99% success rate in helping people lower theire mortgage payments. Is this true? [...]