Compared to the rest of the Metropolitan Los Angeles market, the Lake Forest region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 35 listings have been made available, which means listings might be going fast. You'll want to be prepared to make an offer immediately. About 6% of the listings in the Lake Forest are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,880 sqft. Most buildings in this area are close to 2 stories. Most buildings in this market were built in 1999 and are Class B.