Earlier quoted context omitted.
Could you tell me which other lenders are offering 200 day + lock. With interest rates changing so fast, I get a hard time with lenders letting to lock rates even for 60 days.
Kind of funny that 60 days is too long for a product that lasts 30 years. My guess is local banks and credit unions are the most likely source. They keep the loans on their portfolio instead of selling them like the mortgage companies.
Rate locks are backed by rate swaps. The cost of purchasing a rate swap ultimately comes out of your pocket in the form of additional rate on the loan (the lender can add overhead of course). The cost of rate swaps has doubled in the past 3 months and quadrupled in the past 18 months. I believe it's currently around 3% on 10 year loans, so a 60 day lock on a $500K 10Y mortgage would cost about $2500 while a 200 day lock would cost over $8000.