I recently completed a hybrid house hack-BRRRR-ADU build combo which I'm extremely stoked to say worked out almost completely to plan. 

My family operates a home building business in South Jersey.

If not, in many instances it does not end well: while hope everything goes good forever - always good to have a what if plan just in case

@Samantha Soto  We have done this before but honestly I would run your business now as if you would run it with 20 properties. 

I’m curious to know if that same plan will work this time because I might fly out immediately and the closing ceremony depending on what time it ends.

Several years ago, even with high cash flow from a business, I felt fairly locked out of the places I wanted to purchase due to endlessly rising prices and rates that required constant underwriting revisions to the point where it wasn't worth the time expense. 

This is exactly what I plan to do. 

It has proven to be more difficult to set up than expected mainly because of having to use a third party company for a physical business address1.

Do you plan on doing STRs or is this a brand new luxury 4-Plex where you may be able to get high LTR rents?

A self-directed 401(k) plan offers the small business owner one of the last significant tax benefits.