I used to be a mortgage loan officer and I assure you it's not uncommon for people to object to having their credit pulled. The loan officer may try to convince you by stating that multiple credit pulls by mortgage companies within a specified length of time, (it used to be 30 days; I think it might now be 14 days) only counts as one pull. The rationale behind this is that, unlike credit cards, in the end, you can only have one mortgage. You can simply respond that you understand, however want to wait.
As @jackaroe and @walesmaven posted above, state your credit rating is 750 (or whatever you want it to be) and request rate quotes based on that credit score. Be prepared to answer questions about the outstanding debt you have, your income, length of employment, amount of savings and rent or mortgage payment history.
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I intend to live forever. So far, so good.