401k funds comingled with other investor cash

[Dana Brash]

Hi all, 

Brand new here. I’m establishing a solo 401k to invest in some flips and eventually multifamily holds. I’m looking at how I can do this in partnership with other investors who will use cash and/or loans.  

I’m told mixed fund types is ok but I’m curious if my arms-length restrictions on DIY work are imposed on the other investors by proxy. Or e.g. can cash investor #2 take on the kitchen? 

Are there any good resource recommendations for learning accounting for a project like that?

thanks so much!

Dana

[Brett Synicky]

@Dana Brash only you are restricted to the disqualified party rules.  Most important will be your 401k sharing in the income and expenses pro rata according to the original investment breakdown.  Recommend consulting a tax advisor before moving forward with this. There are several here on BP who understand self directed retirement accounts.  @Ashish Acharya @Nicholas Aiola @Michael Plaks