I've got one just down the street that I used as my first househack.Nice Work @Kendra Levy

New Jersey Manufacturer will but they have a 20% deductible for hurricane damage. 

Over time, I have purchased various items for the rental property and taken tax deductions when I did so.

You report deductible costs per property to the IRS and calculate basis as one number, so any detail of breaking those down is not really necessary and just personal preference.

She said she would consider paying our deductible, which is $1000.

My main question is there going to be any problem with still deducting all the mortgage interest.

If I refinance my existing loan with a new one, can I deduct all the loan origination costs from the existing loan the year I complete the refinance? 

And I tried to be as comprehensive in my modeling as possible, including purchase and sale closing costs, the value of tax deductions, management costs, etc.I know this community is dedicated to investing in real estate specifically, but it's still an investment, and every investment is measured by the profit it can produce and must compete with other options.What am I not understanding or missing here?

After all, deductions, what percent of cashflow is worth going through all hassle.

You'll also likely have tax deductions for your rental property, so that can factor in to this equation as well.