Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.

That question depends on if you have enough other income to qualify.

To go a bit further into what Dmitriy mentioned, since your IRA earns the income the tax treatment is specific to your IRA.

Previously I'd always used Stessa, which has a great Net Cash Flow statement view, breaking down the usual income/expenses, but also includes a section for Interest/Principal, and another section for CapEx. 

Have you used the income approach for the current rents and the projected rents? 

The net rental income should be about 65% more than the mortgage. 

now, if you want to buy an STR as an investment, and you NEED the income to support it, that's totally different...

With a fideicomiso, the gross income is taxed through a withholding tax whereas, with the corporation, the rate, you can deduct expenses but the taxation rate is higher.

Setting rent significantly above FMV could be seen as an attempt to shift income or inflate deductions, leading to potential penalties.

Great reason for not pulling deductions forward.I have been retired from a W2 job for some time and my income is at an all time high and will just keep going up with more RE investments.