To piggy back on Matt, Buying a property through a wholesaler or an auction isn't the best thing to do. Most of the wholesalers are selling to a tight buyer list to whom they trust, and they've done business with. Most auctions are saturated by investors who will scare you away since you will be new to the auction. Truthfully, if you want to find a deal here in LA, you must tell everyone and their moms that you buy Real Estate.
You can go to Local Meets, Ask agents if they know any wholesalers in the area, and even call those bandit signs that LA is saturated by.
If you have a car and some spare time, you can drive for dollars, skip trace the owner, and call the owner of the property you found while driving for dollars. The type of properties you can jot-down while driving for dollars are ugly homes, messed up roof, high grass, mailboxes full, doesn't take the trash out on trash day, and a lot of those factors that you may see someone to sell their home for a discount.
You can even tell people, to encourage them, that you'll give them $1,000 if they bring you a motivated seller, and you purchase the property off the seller, and close, then you will give them $1,000 and boom you found a cheap home (possibly)
I hope that helps.