I offered similar service for a long time but:
- Never asked to send a single penny to my account
- Always traded by API or Metatrader, on client's account.
- Always traded on broker or exchange choosen by client , without access to main account (so can't withdraw, can't change main info like mail or 2FA)
- Always asked for not less than 30% fee , because if i have made money for other people, this is not for free.
- Always explained risk of loss due to market volatility and to leveraged positions
Left this because a lot of people think that traders should win on all trades, instead of understand that ROI shoud be considered in a certain period and not on single trade.
Actually i trade by only for me, and i've about 70 LTC profits, or 400% YTD and i feel really happy
Nope, NOBODY should get a single dime from you unless they can provide proof that they actually made money for you. If they made enough money then they should be able to give you money and omit the part they should be getting. They want 25%? They turned 100 into 200? Get that 50, and send me 150 and that's fine (or get 25 and send me 175 if it is from profit which makes sense).
This is why I do not use brokers neither, it just doesn't make sense to use brokers in this day and age, you have money, you have crypto, you have exchanges all ready for you to deal with it, just go ahead and use it and you will be doing fine without the need of anyone else. I get that this looks a lot easier, give someone who knows how to make money a bit of your cash and watch them work that money into something much bigger without ever spending money on it unless they profit, however that is also risky if you pick the wrong person, that's the risky part.