that's what i also noticed among online bookies, their odds are somewhat close to each other so i don't think it is of your advantage if you will do the betting arbitrage. but for offline bookies, there's a chance that the odds are indeed quite wide in difference.
First you need to have a lot of time, then you need to have accounts with different sportsbook but you need to be aware that these sportsbooks are not using same providers. Once you have these two, arbitrage betting is simple.
Problem is, many sportsbook will not accept you if they find out you are arbitraging. They will not pay you. If the sportsbook is highly reputable then they may return your deposit. At the end you will find, everything was wasted.
I don't suggest anyone to do arbitrage betting.
time and quick decision. because if the game is already starting, the odds can change fast. and as much as possible you already have deposited amount on each sportsbook that you want to place your bets with.
that's the problem over there, they should not have the same provider, else, you're account may be screwed if they found out especially if big amount is involved. for small bets, they may let it pass. but if it is considerable amount, for sure they will do their own investigations. better not to divulge in this activity if it is online bookie. the chance of having the same provider is high, else, your account is at risk.