I am not even sure how your lender is getting you a loan without having your first pay check from your new employer.
Standard Fannie Mae guidelines state that in order for new employment to be utilized, we must provided evidence that you are actually working at the new job. Period.
The best pricing/loan options come from Fannie Mae.
The reason your lender is telling you that your interest rate is going to change is because that lender needs to find a funding source that does not require the first pay check being received. If your lender can locate that for you, stick with her! This is not an easy find!
Your other option is to extend your close of escrow (if it is a reasonably short amount of time), until you receive your first pay check from new employer.
What I can confirm is you won't pay a higher rate due to your situation, UNLESS your scenario appears your purchasing a rental property (doubtful)....
And the only way you'll be able to get approved without showing the lender a paycheck during escrow is if your new employment contract is guaranteed and irrevocable (also doubtful)..
Let me know if I can be a further resource for you!
Best of luck, Jeff
The question is when are you planning to change jobs and has the property been selected and contract signed?
"Is this reasonable ? YES! ...
Aside from economic ebb & flow, mortgage rates are tied to underwriting risk. A job change; especially if it's a career change in a different industry, where you have not even received a pay check is an underwriting red flag of sorts. I'm sure if you were selling a car you would not hand over keys without proof the Buyer had the capacity to pay.
"Should I be looking at a different lender?"
Yes, no, and maybe...here are the differences in where you can obtain financing:
"Retail Banks vs. Mortgage Broker/Bankers"
5506 Sunol Blvd. Suite 200
Pleasanton, CA 94566