Qualifying for a fix & flip loan or transactional funding

Hello BP family,

I'm new to investing. I have a 1st deal in the works prior to establishing an LLC and need funding. How do I go about qualifying for a loan ASAP with no prior experience? Need a loan to fund the complete mortgage to save from going into auction which is estimated at $620k (includes back owed amount is $70k, attorney fees, etc). Once we obtain loan, we want to turn around and list it on the market.

Seeking immediate advice! Thank you all for your advice in advance!