I want to sell BTC for Paypal with a 20% margin so I can make a profit buying from LocalBitcoins then selling for PayPal and withdrawing.
My first idea was to sign a message with the BTC address to prove I have the funds, but is this good enough? Will it be necessary every time for me to use a middle man? Are there any alternatives?
Trading with your name? Buyer can get serious money laundering and terrorism charges.