Transferring property with a mortgage

[Todd Swalin]

My primary residence is owned in a family business LLC. I would like to transfer the property into my own name so that I can utilize the equity to acquire rental properties. I would prefer not to refinance as it would significantly increase my monthly payments. I am trying to sort through my options to find out what would work best.
I was thinking of quit claim deed but am concerned about the due on sale clause. Mortgage is with a local bank in a small town that the business uses so they would likely notice this change.

If the bank calls the due on sale clause could I refinance at that point?

I owe $100k on the house and it is worth around $320k. If I end up having to refinance would it be better to do a cash out refinance for as much as I can get or only refi the $100k and get a heloc?

The plan is to use the cash to brrr or flip a couple properties. 
Thank you for your advice.