Question about a drive thru coffee place

[Sukhwant Kaur]

Hi,

   After months of searching and looking for an investment opportunity,  I found a drive thru coffee place that I am ready to make a move on. Existing owner is renting the business to another person who pays rent. I will not be running the coffee house but keep the same renter with similar conditions. My question is - what are the things I should keep in mind before getting into this? Any word of advice on my due diligence? As this is a drive thru coffee house so there's no bathroom there? Does the law required a commercial property to have a bathroom on premises? Btw this property is in CA.

Thanks

Sukhwant