I work with any companies and with any deposit. I only work on the stages of the Challenges. I do not manage funded accounts. In exceptional cases I can continue working on a funded account, but the minimum deposit must be at least 100k.
In order to avoid IP address issues, I recommend you to purchase a VPS. Your account management and Challenges are managed through your VPS, so your IP address will always be the same and there will be no problems.