What is my best option to financing future real estate deals when I already own a lot of homes?

I own 18 rental homes which totals 32 mortgages. My mid range credit score is 719. What is my best strategy to I can continue to acquire property??? My stated goal is 1 – 2 homes per month but get concerned with mortgage companies worrying about how many home I own.

What happens to a second mortgage when a home is purchased at a foreclosure auction?

I am going to bid on a house at foreclosure and it has a 1st mortgage of 0K and a second of K. The lender on the first two mortgages is Decision One Mortgage. The lender at foreclosure is Countrywide. Does this mean that if I buy this house at foreclosure that I will own additional money to the second mortgage or just the first mortgage and back taxes?