You have such a small list.. you hire a beginner attorney and your have your attorney write them a letter expressing your interest in the property.. very professional polite etc.. there is not a person on the planet that will not open a letter and read it from a law firm..  

Toxic black mold is the worst.

What planet are you from? 

First thing is to find the source of the smell; here's a couple articles on where to start and how to clean it:https://molekule.com/blog/11-common-places-check-mold-home/http://www.startribune.com/finding-source-of-mold-can-be-difficult/47941212/Not all mold is "toxic." 

No where on the planet would banks lend over 30 years at a fixed rate. 

Some view them as toxic while others see a goldmine. 

Rack up costsI would also not recommend asking your servicer who they use or recommend as I know of an attorney a servicer recommends and they are the biggest POS on the planet.

Every person walking this planet brings his or her own set of biases and preconceived notions with them wherever they go.

And you want to be like your hero MSOOTKAUG, and build an empire, then establish your self among the filthy and powerful while secretly building an army of robotic minions to take over this rotten planet?

Easy to sell and easy to finance.Further, if this is a job, it's the easiest one on the planet grossing a million a year.