I did try a few local banks, but they want to use my personal income and credit score for loan decision rather than asset based.

A line of credit to use if I need it. 

The solution I came up with that they accepted was I waived all inspection damages under $5,000, but if the inspection found damaged totaling above that I was still covered.

These are typically built with some type of government subsidy or incentive such as tax credits for the developer in exchange for the leasing restrictions.

I'm eager to build business credit.

One of my properties was in the path of Hurricane Florence and while it thankfully didn’t appear to sustain major damage, there’s resulting water stain on the ceiling in the bottom floor.

Particularly someone who I could open a line of credit with to make it easier to fund the repairs on projects without tying up my cash.

Aside from a down payment on a home and money I can afford to take from my weekly pay, I will be probably paying for most things on credit for the first flip.

I have an LLC, and my bank is offering a line of credit to my LLC. 

I hate to be the barer of bad news but financing you very first flip is one of the very worse things you could do simply because of murphy's law and if anything goes wrong with your flip you are still on the hook for paying back your loan and once you get a black make on your credit it will take years to erase that off your record if at all.