@Mark SpritzWhile in the the year that you open the solo 401k plan you need to be merely pursuing self-employment activity (see IRS Publication 560 which lists this specific language), it is important to note that generally in order to continue with the solo 401k plan you must continue to to perform "material services" with the intent to generate earned income from self-employment.

I want to pop on there a quadplex, live in one unit and rent out the rest. 

The title of my last post seemed as if I was offering a service so I reposted.

First off, thanks for your service to our country via the NAVY.  

Just make sure the debt service coverage will be 1.25 or better.

I'm not on the servicing end of the lending spectrum, so I cant say with 100% accuracy that you cant do an assumption with any other lender than the servicer, but that would be my guess in this case.

Usually they will go 65% to 75% and you have to come up with the rest.

Purchase prices are considerably lower than Los Angeles and other cities in SoCal but the rents are still high enough to produce high cap rates compared to the rest of the state.

I keep the rest and the commission.

I thought about having a property management company manage the property but I do believe this is something I could do on my own and utilize on line screening services as well as checking local evictions public records.