I have a good friend that needs to refi his mortgage but he is underwater a bit, probably 105% LTV or so and will need to find $30k or so to get a conventional 80% LTV loan. We are hatching a plan to try and fund the $30k with a unsecured Prosper or Lending Club loan. His credit score is good, probably in the mid 700's, but the biggest factor will be getting longer terms so his payment doesn't go up too much. What is the longest amortization these outfits offer? Also, any guesses on rates?