@Maria Murphy yes correct, simply paying the debt in the owner's name to hacienda (tax office)/government first as part of the purchase at the notary and everything left to the seller.Valencia has worked quite well for us the last years and compared to Barcelona/Madrid the m2 prices are a lot lower.

After 5 years and very little progress on the ADU valuations I suspect the ADUs simply do not have a value equal to the small unit, small count cost and never will.  

I'd simply let them know that you are not going to renew their lease.

But right now seems to be the absolute exception to where there simply isn't any obvious play to run with. 

Yes, I simply say I'm interested in seeing if a property might be for sale and I'd like to find the owner.

Last week, she called saying that the kitchen flooring has holes in it and she tried to put tape on it but now shes dealing with a pest situation and they are going in those holes.

I simply budget 5% for capital expenses and 5% another 5% for maintenance and work with the money that accumulates in that pot.

Without coaches, without gurus, without any other resources, they simply saved some money, bought a property, managed it as best they could, and held it for 30+ years. 

Financial freedom goes far beyond simply replacing your current income.

My guess is they simply cleaned the entire unit.