Me and my partner want to engage in a sequence of Bitcoin transactions. The first transaction involves me sending $400 in BTC, and the second transaction involves my partner sending me $900 in BTC. To establish trust, both of us are willing to deposit $900 in BTC into an account, which will be returned to us after the completion of the transactions.
How should we proceed? How do we find a trusted intermediary?
Edit: To clarify: "the partner" is just a person I met on the internet, there is no trust relationship between the two uf us. It is in both our interests that this sequence of transaction will take place as described.
What is purpose of the trade with value at $900 to deposit it to an exchange account, yours or your friend's account?
You sends $400 and where it goes to? You didn't write destination of the $400.
Your partner sends $900 to you.
And at the end, there is a sending transaction at $900 to an exchange account. I am confusing here. Who will be a person to send $900 to that account, you or your friend?
I assume the deal is you and your partner will contribute $400 and $500, and the net $900 will be sent to that exchange account, is it like that?