First look at the 3 comparable properties that were presented in the sales comparison grid (and the rental grid too I suppose, for a judgement of market rents).

Mechanics/Tax/Judgement/etc...?

Now I have to go back to the drawing board, I am trying to determine if it's worth getting a lawyer in hopes that I can get a judgement against him and ask that he pay my lawyer fees (I'm not sure how that works since I have a civil case.) 

Finally in winter 2018 we had our court date and received the judgement. 

Then, like Kenneth, I run the numbers using online information that includes comparable rents (Rentometer), current tax information, bedrooms, bathrooms, square footage, and a judgement call on the appeal of the home from online photos.

Use good judgement.

Besides the obvious like no evictions, late payments or defaults, look for evidence the person has good judgement.

When your steering people because the percentage is not in you favor your denying someone there dream home, that’s not fair let the buyer make that judgement call.

If the owner knew about the problem but did nothing, and can be held liable for the damage, you might get quite a judgement.

So we evicted a tenant and filed for a judgement against the tenant. 1.