var personWithLocation = context.Persons
        .SelectMany(p => context.ViewPersonLastLocations
                                .Where(vp => vp.person_id == p.id)
                                .DefaultIfEmpty(),
                         (p, vp) => new PersonViewModel  // create a viewmodel for results or anonymous
                         {
                             Id = p.id,
                             Name = p.name,
                             LastName = p.lastname,
                             LocationName = vp.location_name
                         }
                     ).ToList();