If there are two owners on a Deed of Trust are both signatures needed for a Home Equity Loan in Washington State?

If both names are on the first deed of trust, then more than likely the lender will require both lenders on the 2nd. I'm a Broker here in Scottsdale AZ and I only lend in Arizona. If you or someone you know is looking for financing options, feel free to contact me or pass along my information. 480-287-5714 WilliamAcres.com

Typically no. The only time they would request that is if they needed the other person's income for the qualification of the loan.

YES, Unless its an "and or" or just an "or" between names. If its only an "and" then both are required under contract law and real property laws. The only notable exceptions are death or terminally ill with doctor's diagnoses mental deteration and a power of attorney, rendering. I havent however read Washington States laws but I would be willing to bet that I am close...