Acceptable amount of time for broker to respond

[Travis Gregory]

When working with a mortgage broker on getting a loan, what's considered an acceptable amount of time for them to respond to questions? What about getting back to you regarding pre-approval? For example, let's say your broker just started the process of getting you pre-approved but they hit a snag, how long should it take them to get back to you to let you know they hit a snag? For me it seems like they should let you know within hours, at least send you a text. And if they take a day to respond is that a big red flag considering how fast buyers need to move on purchasing a good deal these days? Is that an unreal expectation?