I sold a property last year that required the owner to get a certificate of nonconformity to be a legal two family.

Taking legal action against another party necessarily involves questions of law and can result detrimental legal impacts on him if he files a lawsuit without proper grounds to do so, or where the opposing party may have counter-claims against him.

If the issue continues, consider offering a formal payment plan or seeking legal advice.

Starts to get messy quickly.   

It makes ADUs under 900 sq. ft. in SF zones legal BY RIGHT, statewide, starting in February.

Exhibit A -a page with the legal description of the property  3.

The next question is whether the property has the zoning to legally operate as a 2 or 3 unit building. 

For instance my 90 lot subdivision at one point I had 90 legal descriptions and parcels on one master deed.. as I sold them off we just deeded them out separately.. its super common especially in older platted cities were lots might have been small like 25 X 100 and someone bought 3 of them and then built one home on all three.. some places they force merge them others you can go back and recreate the Old lots of record.. there is millions upon millions made by those that know how to find shadow plats and bring to life underlying parcels.

We also are very verse on the Property Code Laws of what legally we must do and what is just good business.So @Ian McClure to answer your question, it would depend on how the new tenant was on boarded and what kind of business the owner runs concerning his property

Do most get a legal review for each fund they invest in?