Typical papers at a conveyancing include: deed(s), certified checks, promissory note, mortgage, certificate of liens, "pro rata" property taxes, title insurance binder, and fire insurance binder.
Normally, scam operators won't give you full and finish data in writing until after you've given them a credit card number, money order or certified check.
Meet buyers in a public location, don't let them test drive the car themselves, and take certified check, cash, or money order for payment before you transfer ownership.