2.A friend of mine who lives in Colombia can buy bitcoins in localbitcoin F2F at some good price, lets say 6000 dollars one, then he sends it to my wallet in belgium using XAPO.COM.  I can immediately go and get the money out of an ATM and we can do 9% earnings immediately. or even more if we wait for btc to go up.

However I have to send him his money back and half of the earnings, 4.5%.  We did this test with only 100 dollars just for testing purposes.  However that wire transfer is under my name.

We want to do it with at least 1btc per month, I am afraid of how regulations work here in Belgium, the  money will never be deposited into a belgium account, but there will be a trace of me sending a lot of money 6k per month and they might think where I am getting the money from.

1. How can I do this as legal as possible and not get into any kind of troubles
2. Wlill I have to pay any taxes on those transactions each year? otherwise seems not a good transaction at all,

thx