I am looking at using a HELOC for the down payment an investment property. I have already identified the perfect property and don't want to lose it... I wish I would have done the HELOC sooner and had it waiting. I have 770+ credit, no late payments ever.

A few questions:

1) How fast can a HELOC go through? Any recommendations for a super quick HELOC?

2) Can/Should I put in an offer on the house before HELOC goes through to let seller know I want the house? I will start my HELOC applications tomorrow.