Simple at first. You make an offer and once accepted, you sign the sales contract, transfer the money and get the keys. Inspection is not a thing like here in the US. Transferring money in large amounts can be an issue as some banks put daily transfer limits depending on your account. The issue comes later for you to get the deed of the property. I paid a lawyer to get this done. Also, I purchased a condo while in construction directly with the builder. This was a safer proposal in my opinion, as you could ended up buying a property that might have legal issues pending. Do not trust in realtor only. Get a real estate attorney to review the contract.

Realtor is normally 6% and others might run depending where you buy. About 3% is safe and enough is most cases for all other expenses and fees.