Policy around roommates having friends come hang out?

[Bruce P.]

For property managers/landlords in a house hacking situation, what's your policy for roommates/tenants having their friend (or friends) come hang out (not overnight) for less than 24 hours?  Do you limit the number of friends and/or time? Just trying to get some ideas around a sensible management to balance about concerns around Covid-19 as well as roommate economics. Property is in the Los Angeles area if that makes a difference.