My wife and I have a house under contract in California that we are planning to flip. We have decided to partner with another couple in a JV partnership for the project. How do I add them to the title? We are using Hard Money and our new partner's funds.

Originally posted by @Dax Rhorer:

My wife and I have a house under contract in California that we are planning to flip. We have decided to partner with another couple in a JV partnership for the project. How do I add them to the title? We are using Hard Money and our new partner's funds.

We also, just started an LLC. Our partners want to use a SDIRA, is it better for them to invest in the LLC and I add the LLC to the deed?

You can assign the contract, if it doesn't prohibit it, or you'll need an addendum executed by all parties.