Hi Steven,
I live in the US and use FXIFY.com as my prop firm broker. The problem with using prop firm brokers in the US is they do not offer MT4 or MT5. So it is not possible to use Expert Advisors. So what I have done in the past was to use oanda.com demo account to launch my Expert Advisors and then copy trade to FXIFY. Currently I have a 50K account with FXIFY but am using it to manually trade. Gotta keep them manual trading skill up! LOL. For trading with Expert Advisors I am using DarwinxZero.com which uses MT5.
Alan,