Site: nolo.com
... Your main options for sharing title with a non-spouse include:
as tenants in common (TIC), and
as joint ... tenants with right of survivorship (JTWROS). ... (Married couples may also take title as "tenants by the entirety" or as "community property.") ... This decision is easy if you take title as joint tenants with right of survivorship (JTWROS). ... If you take title as tenants in common (TIC), however, you don't need to divide your interests 50/50, ...