estate as collateral? I need $50K to invest in a business opportunity. I have a home with LOTS of equity. Where can I find an investor to do this quickly?

Look on Google...

Don't waste your time posting and try doing a cash out refi and tell the broker that time is of the essence and you need it done ASAP. This is probably the way you'll get the best terms.

Contact the local Small Business Development Center and ask their advice. They might be able to connect you with an Angel investor.