Beach Rentals in North San Diego County

As I posted earlier today at Coastal Orange County Living, we are looking for a condo, apartment or beach house to rent in Del Mar, Del Mar Heights or Solana Beach.  We'd like to start moving in during the last week of January 2016 (depending on my work schedule which should be decided by December 15).

We are on a budget, but definitely have in mind of where we want to live and what types of living situations would work.  We would most like to rent from a private owner or landlord, rather than a huge property management company.