You could start by doing your market research to see what demand is like for long term stays and what sort of guests are likely to want these stays @Terri129
For example I know in the US that travelling nurses are one such group. You may also have a university or large companies or hospitals who might want this sort of accommodations for students/staff that you could partner with?
Obviously check your tenancy laws I believe in CA that guests would assume tenancy rights for stays of a month or more.