What can be dangerous for an IBC company buyer?

This is a quite open question and has an open answer. Firstly you have to choose a registered agent for the company registration as you can do this your selves. They could sell you a company that already has others owners. Theoretically you could end up with only just "documents" of a non existing  company. You are also risk to loose the money deposited in the bank account. This is the most usual fraud in this business. An instruction is send to the bank to transfer all the money to account X and you know nothing about it. You can avoid this if you follow the  recommendations. Another kind of fraud : your offered to open an account in a world first class bank and they change the documents and you end up with an account in an offshore bank. After this they just have to expect the time that a significant amount of money is accumulated in the account. During negotiations with the registrators  you must carefully check every expense. You must also have a plan of working through an offshore company so you could check if the offered company (jurisdiction) will allow you to make your business according to your planning. You must know that there is no guarantee from the fraud.