Mathematical errors: If you miscalculated a deduction or credit, an amended return can help correct the error.Filing status change: If you originally filed as single but are now married or qualify as head of household, you can amend your return to update your filing status.Missing or incorrect income: If you missed reporting income or reported an incorrect amount, you can amend your return to get this corrected.Missing deductions or credits: If there was a deduction that you were entitled to, but you forgot to claim it, you can amend your return to include the deduction.How should you amend your tax return?

So, mathematically, you should continue to rent.However, for your longterm financial wellbeing, owning is better than renting and you build up equity and benefit from rent increases from owning investment property plus all the tax benefits you don't get from renting.I would look at buying a duplex in a market like Lansing, MI.

Now I am no genious, but I am certainly proficient in mathematics and a 385k loan at 10% interest is $3208.33 of interst alone, let alone the principle!

@Edward Stephens Everyone has told you why this is mathematically a bad idea.

I'm actually really good at mathematics, but I kept telling myself that the small house in Fredericksburg could be turned more quickly.Even though I'm up to four houses, I'm still learning :)

They are less onerous for residential construction, but still complex, and a complete understanding of much of it requires referring to several sections, often in multiple physical codebooks, and not infrequently requiring mathematical calculations. 

As @Chris May stated, we had a spirited debate over this in another thread and several people mathematically modeled it.

So it is a simple mathematical expression of how much profit I am going to get from deploying my money.However it is important to note that the cap rate is just one single tool someone should use to analyze a property.

But, that mathematical truth has absolutely nothing to do with my personal beliefs.

I believe that it is a mathematical impossibility for any other single person to have been the result of so many distinct and finite prophecies.