The final week, handled remotely
Set up the notary appointment a few days before closing and stop the utilities that day. Ask Rudy where to send the keys and garage openers for the buyer, and file the closing statement with your tax records.
Gain on a long-held house can be sizable. The federal exclusion shelters up to $250,000 of it for a single filer and $500,000 for a joint return, as long as the house was your main home for any 2 years within the 5 years before the sale (IRS Publication 523), which makes your move-out date important. California's Franchise Tax Board may also have escrow withhold a slice of the price unless an exemption covers your sale (Form 593).
Bought a replacement home in California? Under Proposition 19, homeowners 55 and older may transfer the base year value of their main home to a replacement anywhere in California bought within 2 years of the sale, up to 3 times (BOE). The downsizing calculator helps with the numbers, and a tax professional or the Assessor can confirm eligibility.