If you want to get fancier and buy a more comprehensive calculator you could.

Here is my simple Top 5:1.Review the market – Understand the trends and conditions in the area.2.Analyze the property and the numbers – Ensure the deal makes financial sense.3.Visit the property – There’s no substitute for seeing it firsthand.4.Meet the team – Whether it’s your property manager, builder, or contractor, relationships matter.5.Complete inspections and appraisals – These protect you from costly surprises.If all these boxes are checked and the numbers work for your goals, then it’s likely a solid deal.

With software, it's only as powerful as its user so some clients overcomplicate things and spend most of their time trying to "fix Quickbooks".The most successful and quick clients keep it simple or keep it to their comprehensive level. 

While this review appears comprehensive and objective at first glance, I see a concerning pattern.Looking through William Ferr's posting history on BiggerPockets, there's an unmistakable pattern of consistently promoting Jonathan Halves and his training course The Land Method and his Land Riches Blueprint, while criticizing other educators.

Also very good for many of the same reasons, but not as comprehensive. 

There SOW would usually be - 'I want a remodel done on the kitchen and bath, and add a new bedroom on the left side of the house'...Then I would add items that only a GC would know about or notice, like needing new headers for the openings they want, the elec panel being undersized, or the roof being suspect, etc...Together we would then arrive at a comprehensive SOW.Yes, that is much better scenario.

I don't recommend it unless you can find a CPA who really understands the syndication space. 

This is because the main house often includes value drivers that ADUs do not, such as larger living spaces and more comprehensive amenities.

Assuming you're buying 2–3 multifamily homes per year in several different states, I understand the need for LLCs for protection.

I'd like to understand @Devin James, from the domestic developer mind of things; If there stands a confusion, lack of comprehension on how to address housing compilation in a given region, city, MSA etc., why not look to Europe?