New investors in Georgia looking for startup lending. Credit score low.?

I and two other investors have become an LLC. We are looking to purchase, rehab and rent out properties to create a great real estate portfolio and branch out seperately at a latter date after securing residual income. We need some advice on how to begin the loan process and getting the ball rolling now that we have become a limited liability company. All of us have good jobs and 2 have credit scores above 600 and 700. The other partner's credit is below 500. How do we approach a lender with the credit issues. Thanks!