I have the S-corp established with a bank acct & a credit line that I would use to help with any expenses if necessary but I don't know if I can pay for anything thru the business if it not owned by the business.

But as mentioned above, stay away from any company charging more than a simple credit check fee up front.

I know I can go refinance but do have the credit challenge. an I request the contract be voided for not disclosing the roof situation?

One was done through Meredith Village, and the other was done with Granite State Credit Union.

I eventually ended up replacing the whole roof.At the end of last year, I talked to him about extending our agreement because I spent a lot more money than expected and had credit things to get in order.

Hey I am new to this site and to real estate I dont have any money nor good credit so where should I begin 

I don't know why you're having a difficult time finding a bank to do a refinance for your investments.This is a very common and typical practice so I would suggest calling a few more banks or credit unions.

Then some of your cash is in your pocket and you will start to establish your credit in real estate investing? 

All single family.Now the tenants usually have less then 700 credit.

The ones that do a good job were far too expensive, and the cheap ones tend to do a terrible job.