Thank you all for the great advice. I’ve found out who the regional SVP of sales is (from a 5-month old LA Times article). Do I just call him and make my offer over the phone? Or do I give my written offer/cashier’s check/bank approval letter to the sales agent, and then call the SVP?

Asking for landscaping, flooring, 5 years of HOA fees, etc., may allow the builder to keep the price a little closer to $900K.