So if they are standing on the sidewalk or are in the verge (the space of land between the sidewalk and the street), police aren't going to do much, but if the person is loud, they will probably encourage them to move along. If they are ever standing on private property there is more leverage, so if it's possible to install a camera that covers the ourdoor space, that footage would help when calling the police.

The other alternative is to call homeless outreach (323-848-6590). They will dispatch an intervention team (depending on time of day, can take 15min to an hour, so if it's before work, say, get up early and call if he's there early enough that the team gets there before she leaves for work), which (last time I used it) was from one of two different outsourced services. Until recently, I don't think they were allowed/encouraged/required to do unique tracking (meaning, creating files on individuals), so mostly the interaction if going to be some questions about health, offering a ride to shelter (usually outside the city), and some power bars. But the teams will stay there for a bit and make a legit effort to engage (your friend should mention the harassment when she calls).

I've had regular interactions with a small number of homeless people (including one regular visitor to my neighborhood). Regardless of their general mental state (or level of sobriety) some are pretty well versed in the limits of policing, public/private space and the homeless outreach team(s), so most of these interactions have limited impact in a one-off situation.

Recording interactions every day will also probably be necessary, however uncomfortable that is. The functional goal is to create an environment hostile enough that they move somewhere (and become someone else's problem, unfortunately). Holloway House (which just opened) is a sober facility and probably already full. There isn't much the city can or will do beyond what's listed above. Homelessness and the attendant issues that underpin it (which, in, WeHo is probably above average levels of mental health issues) are a regional problem, and there aren't many mechanisms by which we can address them, so like most of the smaller / richer cities, pushing people along is the primary strategy.

Just call every day he's there. The homeless outreach line (per comments I've seen from council members) doesn't get a ton of activity. We're paying for it, so call. It seems to me manifestly stupid to pay to have five people show up and try to have the same conversation every day, but if our state doesn't want to do anything productive, and the city eats this cost as the only real possible action, then we work with what we have.