Need recommendation for Self Directed IRA custodian with low fees

[Pavel Sakurets]

Hi all. I have several people that want to invest into my fund using Roth IRA. Can somebody give a recommendation what SDIRA custodian to use?

I have used Equity Trust since 2010, but their fees are getting high on amounts over 100K and I dont like it. Perhaps there is a less expensive custodian that you can recommend. Thank you!