The material is interesting, there is no upsell, and you do get a fancy certificate by email.

@Bernard Reisz To clarify on your comment regarding rental property ownership and income not qualifying for a Solo 401k, is this the case even if you qualify for "material participation" in your properties?

If you have given the contracdtor a deposit and that deposit has been used to purchase materials, & those materials are in your property I would;1.

As an example, we were doing a charity project for a home owner that costs us $30 in materials but $210 in licensing and permits.

I am no CPA (and you should consult with one) but how do you plan to meet the IRS material participation rule with a $400K W2 job. 

I still own 1/2 of the remaindership portion.Here are the questions….For my portion, do I retain the carryover basis from value of property gifted to me from my dad?

If you own the land outright, you can get a construction loan for labor and materials.

I did a simple Google search.Read this:What Is Material Participation?

As my avg rental period is <8 days, and I have <14 days personal use at the property and believe I can meet the material participation test, this should be a non-passive activity.Specific Questions on Material Participation:1) Do hours logged for material participation in 2022 include time prior to placing the property in service (i.e. first half of 2022)?

A "reorganization took place, one of the families left the group in exchange for the insurance proceeds and the property then had 4 owners (and 4 cottages)2000:  I bought ($42,000) my parent's share.2000-2010:  I bought the other shareholder's shares (total $300,000), leaving just me as the sole shareholder2017:  Elected to file as S corp.None of these transactions were properly recorded.2022 1120S tax return (2023 is on extension) shows:$0 income$15,000 Land (sched L, line 12)$122k Loans from me($189K) Retained earning$93K cap stock($46k) Sched m-2I have no idea how we got to these amounts.Does any of this make things easier to understand and easier to get me out of this capital gains problem (or does it just muddy things even more)?