House Hacking and Bathroom Sharing

[Chad Maxwell]

I am closing soon on a property that I intend to "house hack" with. It is a 4/3 with more bedrooms than bathrooms. At first I imagined just renting out two bedrooms, however, if I rent out a 3rd, I will cash-flow.  I read Craig C's book on HouseHacking but I didn't observe anywhere in the book where he covers this dilemma. 

The issue is not having enough bathrooms and I am wondering if there is a large enough rental pool for folks who don't mind sharing a bathroom.  Is this typical with house hacking or is it normally 1/1.  I am hoping someone here has experience with this and can provide details on how this works.  Is there a set of rules that are agreed to by both tenants?  What happens if both need to use the bathroom at the same time, what do they do, etc.