people have been renovating and refinancing since refinances and renovations were done in the us probably in the late 1800s  so no mystery there.. 

Baltimore market is a mystery to us so we will have to learn a lot more about the area/market.

That info on the Zero Lot Line zoning pretty much solves the "mini mystery" I had in my head of wondering why there are SO many of these single family attached duplexes around here.

Unprovable FACT: there are ethically challenged listing agents where investors not doing business with them mysteriously never seem to get their offers submitted by other agents accepted.

As to your question, it's a mystery to me. 

One of the great mysteries of life for me is inflation. 

It feels a bit like we are chasing ghosts at this point, which is quite expensive and hasn't solved the problem.So in your professional opinion, you think it's likely that both drains and a mysterious exterior leak of some kind all manifested suddenly in a short time after years of no issues?

With the mystery of what's behind the walls - do you find yourself drawing a line towards a certain year build in Austin?

It helps to have accumulated some of that mysterious passive income. 

We need to solve this mystery.