Most cost segregation study companies provide the quote for free.

@Caryn FischerI agree with Jaron, you should definitely have a consultation with your tax accountant and/or financial planner before you do anything. 

I never shy away from accountability. 

Do you know if there is a service, monthly or annual fee for opening one of these accounts? 

This is a physical asset, not paper, and it's providing consistent income.Albeit for your not understanding tax laws and depreciation, I'm wondering why there's a question as to what you should keep.You understand capital gains, but I'm pretty sure you're not familiar with depreciation and loan paydown.

The policy must provide a minimum of $[amount] in liability coverage.

House hacking will provide you with an onramp, though, and make it much easier to get started. 

AccountabilityAnother obvious and much-needed benefit of a coaching program is having someone hold you accountable.

2) Are you pre-approved and have the down payment in your bank account?

So if your interest payment is $1000 then the servicer automatically ACH debits your account that plus the servicing fee (assuming you set up automatic payments as @Christian Ehlers suggests).