Using the same bank to do a Heloc and refinance

[Emmanuel Fregene]

I am looking to take out a heloc on my primary home to buy a rental property and use the BRRRR strategy. When it comes to the refinance, do people usually use the same bank they used for a heloc (to purchase the property) to also do the refinance (for better interest rates) out of the heloc? And if so, how long do you usually need to have the heloc before you can qualify for a refinance (assuming you have the equity built up)?

Thanks in advance for your help!