I bought it last year and thus far have: 1) Appealed assessed value to bring down taxes, 2) Got better (less expensive) insurance, 2) Rehabbed 3/4 units, and 3) increased rents $300-$400 per unit along the way.

Tax liens2.

You'll likely want to evaluate the investment with UDFI tax figured in.The Solo 401k trust would make the payments to the seller/lender and would also pay for any investment-related expenses.

Quote from @Erick Pena: A "good" rental property is one that covers all expenses (mortgage, taxes, insurance, maintenance, property management fees, and any other costs) and still leave a surplus (commonly referred to as cash flow).Calculate cash flow as: Cash Flow = Rental Income − Operating Expenses − DebtThere's much more to it, but that's the basic idea.

so I used 1.5% as a property tax number, and I used $200 mo for insurance.

What an investor gives up though is tax bene's and the chance ( well at least proforma wise) that you bought at X cap rate and can sell at Y cap rate and there is a big profit that is added on to your returns. 

As always, make sure to run the numbers carefully and factor in local property taxes and HOA fees, which can vary widely in North Texas.Delayed gratification is key in real estate investing, but with patience, the rewards can be life-changing.Best of luck with your search

With an 8% mortgage rate, they would pay more than $650k in interest.One major problem for both buyers and owners beyond mortgage rates is the rising cost of property tax and insurance.

NOI Underwriting Methodology: NRI and EGI, real estate taxes, operating expense underwriting rules of thumb, replacement reserves, appraiser’s impact on lender underwriting, expense comps, etc.10. 

So, in your considerations, I would park right there for a bit and determine how this would look for you.Since you have about 2.5 years to think about it before you would need to spring into action to take advantage of the rollover for tax advantages, maybe you try on a rental and see how it fits.