Hello @Kristopher Werner!
I was in your exact situation about 2 weeks ago. I googled "questions to ask lenders" and looked at youtube videos, etc. I also started with lenders that either knew me or that we were recommended to by someone they worked with a lot. Some of the questions I found really helpful were:
-Based on my goals, which programs do you recommend?
-What is the interest rate on that loan?
-Do you offer rate locks? How do they work?
-What are all of my lending costs?
-Will my loan have pre-payment penalties?
-Where does the underwriting process take place on my loan? (in house is faster)
-Will your brokerage sell my note? (After you close on my home loan, do you sell it?)
These are just some that stood out to me. And DEFINITELY talk to more than one lender. We have learned that not everyone offers the same programs/offers. They say the interest rate is about the same but the relationships, speed, and professionalism make a huge difference.
Warm wishes,
Ana