I think a good tax person is worth their cost.  

Prioritize properties with strong rental potential and set aside reserves to handle unexpected costs.Finally, familiarize yourself with tenant laws in your target market, especially in Portland, and consult a real estate-savvy CPA for tax efficiency and legal considerations.

Taxable income is not cash flow.There are a myriad possibilities for taxes.

Also, we'll need to know what your other expenses will be (taxes, insurance, etc.). 

Does it need to be completed before end of the year to use it when I do taxes in April 2025? 

The way I'm looking at it, if my spouse and I only do employer matching for the 10 years we would have more than enough in there and still 10 years out from being able to access it.I do plan on doing 401k loans for deals if the numbers check out, and I've considered rolling over some of our 401ks into roth IRAs to access our contributions but we'd have to pay taxes out of pocket (a big hit to cash flow) and we couldn't touch it for 5 years.  

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

It likely means you have that amount of coverage when caused by another peril and as mentioned it's typically a significantly lower limit than other coverage amounts.If a pipe bursts, it will likely be covered. 

If the airport authority would deed the buildings to me, it would cause them to be entered on the tax roll.

The rate will also be lower than either of the two previously mentioned options.