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