CPA help: Report Rental Loss on 1040

[Brian Scott]

2021 is my first year as a landlord and to save money I'm doing taxes myself for the first couple of years. To avoid doing anything wrong I wanted to double check a few things. Can any CPA's answer the below? I've scoured the forums for months as well as Google and the tax code, but still had some questions.

1. This first year I have a rental loss approaching the $25k passive activity limit for active participants. To report this, I fill out Schedule E which will show the total loss (negative value) which then transfers to 1040 Schedule 1, Part 1, Line 5 as negative. With nothing else this goes to Line 9 (as negative) and then transfers to Form 1040 Line 8 (other income) as a negative value. This negative value adds to the positive W-2 wages to reduce the total income? The instructions don't mention on how to handle negative values for Other Income, which is my confusion here.

2. For depreciation on one of the properties, I was planning on separating/segregating carpet, floating LVP flooring, cabinets, dishwasher, microwave, oven, and a shed as separate assets from the building and using 100% bonus depreciation to deduct fully this first year. From what I have found everything but the shed is 5 yr or 7 yr property; the shed is probably 15 yr property but I couldn't find concrete answer. 

Is there anything wrong with taking the 100% bonus depreciation on these (and subtracting their value from the total purchase price to calculate the building basis)? Would it increase risk of an audit?

3. Near the end of 2021, I'm planning on selling about $20k in ETF's which have about $10k in long term capital gains. With large 401k contributions and the ~$25k rental loss, my ordinary income will be about $21k and with the $10k in gains, total income should be $31k. I should be able to pay 0% on the capital gains, since none of the gains when added to ordinary income exceeded $40k?

Please let me know if I can't add the capital gains and W-2 wages, and subtract the $25k rental loss, to end up at MAGI! I want to harvest the gain (since I have the rental loss) and buy back to reset the basis.

Thank you in advance.