Bank account question

[Matty Bee]

Hello, 

I'm about to close on my first rental property. I'm going the traditional 30 year lender mortgage on my personal name I'm not sure if they have a due on sale clause but lets assume they do and I can't move this into an LLC yet. Should I use my personal checking since the title and mortgage is under my personal name? Or should I open a business checking account even though I don't have a business entity yet?

Thanks