In my Opinion , You must get a independent third party to verify your facility and have a link to the evaluation report on the third party official web page .  Have a order assurance : If the orders are not fulfilled as per the contract that you will refund the Investment . Have a web interface to the assets so we can monitor /configure the assets that are leased . I think these may put the investors at ease to a certain extent. Cloud Mining is not a popular or a trusted formula and I am not sure about it, unless you can guarantee a mined profit of $32 a day per Antminer s9. That is $32 for every 13.5 Th hash power someone buy's.