Here is the full list of all 40 Pickers achievements.
Restore all items before they are sold
Buy a Movie Projector
Buy a Maffler Man
Complete each hidden object game without using the scanner
Complete each hidden object game without using any hints
Bring an owner's mood from angry (red) to happy (green) in one day
Buy a Jukebox
Buy a Sun Clock
Buy a Motorized Scooter from Hambone Richards
Buy an item at less than 75% of the asking price
Combine a Suit of Armor with a Sword
Consult the Expert 20 times
Complete a hidden object scene in under a minute
Unlock all locations in the game
Maintain the leader position for 7 days
Reduce your store inventory to one page anytime after the 20th day
Buy a Vampire Hunting Kit
Create 10 new items using the combine tool
Reach the Number 1 Rank!
Collect 40 keys to unlock Unlimited Hidden Object Mode
End a day with Patrick Merman in a green mood
Explore every scene, hidden object game, and close up in the first 6 location
Buy CJ Baxter's safe
Sell 5 items from Lizzie Davis' crawl space
Buy and sell 20 items from the Hot Category
Auction 20 items for a profit
Make a profit 5 days in a row
End a day with two or more characters liking you (in green)
Complete 5 unique hidden object scenes
Change a character's mood to green in one transaction
Make a 300% profit in an auction
Combine two items to create something new
Buy and sell an item from the Hot Category
Restore an item
Find all 60 keys
Buy a group of items at less than 65% of the asking price
Buy an Accordion
Buy a Bigfoot Photo
Buy a Snow Globe
Buy a WWII Helmet