My understanding is that so long as they confirm that they're moved out and give me the keys, I'm well within my rights to just have a junk remover / trash company take whatever was not there to begin with, and deduct that from the security deposit?

I was told that I could only depreciate 8.6% (square footage percent of the upper unit) and only deduct repairs done to the rented room alone.

This is achieved because the IRS allows deductions for interest paid on investments when the money is borrowed to do so.

Red flag to IRS if you try to deduct the taxes and insurance on the LLC tax return.

But on F8582, I already deduct the net income in the unallowed loss calculation (carry over loss for that property becomes -$30K+$2k=-$28k) on Part V and VII and VIII.

You also benefited from the tax deduction that includes PMI and per your own statement, it's been a great experience until you looked at a recent statement that reminded you of what you once knew but forgot from long ago.Do the math.

“If an individual is part of a high-deductible health care plan, making a contribution into their health savings account would also reduce taxable income.”Donation to a Qualified Charitable OrganizationCharitably inclined individuals might consider donating cash or appreciated property to a qualified charitable organization, potentially providing a tax deduction to help offset that tax year’s taxable income.

SEP IRA wasn't deducted, Real Estate Professional status was not applied, and Cost Segregation wasn't consider for the year 2022. 

Two incidents of thefts from my rehabs was a no-brainer to get the WI/FI which is nominal to me calling the police, informing the insurance company only to be told (whatever) wasn't covered, and of course my deductible is $1000. 

Quote from @Michael Plaks: There are many CPAs here and many investors who think they are CPAs.The key issue to understand is: you cannot create any tax losses from renting rooms in your house.So if I rent out one of my rooms at say $600 a month ($7200 a year), I cannot deduct more than $7200 in expenses?