Also, when presenting the seller financing option explain to her that deferring tax payments also allows her to save more as she's not paying all these high taxes at once!

Sometimes (as an example) you will say, "I will deed the property back to you for $5,000" and the taxpayer will say, "I'm not going to pay you $5,000, I happen to know I can redeem for what you paid the state plus a little extra interest." 

The taxpayer might be able to counterclaim for redemption.

I have found taxpayers can be tremendously creative.

Very few, if any, shall in fact make it that far.When an audit ends badly, a taxpayer can sue in Tax Court. 97% (or so) of the cases that go to Tax Court settle – and in the vast majority of cases, the settlement favors the taxpayer.

The IRS requires that the tax payer be the same on the old and new property when done as a 1031.  

If I am going to be turning a profit over 25,000 on my rental portfolio this year as a single member pass through LLC, am I required to make LLET estimated tax payments?

.- Trash utility included as part of property tax payment.- Market lot rent: $410 - $460.  

Your A/C and furnace are improvements to the HVAC building system, and thus the building unit of property.The $5,000 will most likely have to be capitalized, but there are caveats within the DMSH, as well as other options such as the small taxpayer safe harbor (STSH).Encourage you to work with your tax CPA/EA as they'll know your facts, circumstances, and goals.

The new 20% qualified business income deduction is great for flippers.Something to consider when flipping is the potential requirement to make estimated tax payments(Fed and State).Are you open to working with an accountant outside of the state of Arizona?