The price paid was easily worth the work of showing the house and negotiating with other agents.

If they are professional, they can explain this quickly and easily.

@Susan Thelen it’s likely easiest you do this in excel so you can easily modify variables and test the NPV sensitivity.

Does that mean they are in some kind of archived state but still easily accessible versus fully removed?

You can easily train your tenant to use it properly and then let them go. 

That money can very easily disappear if for some reason you aren't able to close.

But get that appraisal first or you could easily cost yourself 10%.

This change is significant for the financial feasibility of ADU construction in Chicago since water service costs can be more easily justified when collecting rents from two additional unit.Also proposes to allow larger units and to allow ADU construction in any zoning designation.

I can easily know how accurate your method is then. 

That would cash flow more easily.