As a Newbie member with limited popularity in the forum, those interested in your offer should definitely use the escrow service provided by one of the trusted members listed in the following topic >
Few Trusted Escrow Providers.What is the commission percentage you will charge on transactions? Also, what amount are you looking to buy?
I asked you these questions to provide more details about your service. Frankly, I do not use the Cash app and prefer to use PayPal and Zelle due to lower fees.