We are looking at multifamily, or signal family, with ADU or potential to add ADU.

Read the signals of the parties and they will tell you when they are motivated and when they are in synch with your plans and goals.

However, if you can't find a workable solution it signals general tenant uncooperativeness.   

Markets provide price signals and an inability, or failure, to respond to those signals lead to poor outcomes. 

As another architect, I co-sign all of this.

So...you have a bunch of things going against you now, back on the market twice is signaling to people the house has a problem, true or not.Time will help, especially letting the appraisals catch up.

High inflation rates can signal an ailing economy. 

If you PM me I'll add you to the signal chat for the group.

Them selling is not a signal that there is something wrong.Just do the math.  

I'd prefer sending him smoke signals since they both seem to be filled with hot air.