Then on top of that we usually discover a heat vent covered in asbestos & full of old oil fce residue/dust, then we discover a run of random cast iron vent plumbing.

A bag of mixed reviews.

It is a stupid selfish impatient wholesaler and an agent without vision that are on the opposite ends.What do you think..what you describe is why so many get on BP and say agents are scum bags.. 

Get another job, if you can't get another, work on getting a better job, focus HARD on it without distractions.. sell everything that collects dust, sell your unused toys, trade a fancy car in for an older one.. get sidework, work freaking HARD.

Placed in a gift bag and cost under $14.  

All it takes is a tenant to scrap your encapsulant off and you are back to square one with lead dust in the house.

Every Saturday she would tak a trash bag and clean up her front yard and then go up and down the street.

Sure , now If I hold first position on their loan , its not a problem But if I have to file a lien I am holding a bag of xxxx.  

There may be some final details such as dust and window cleaning etc. which you may needto hire a cleaning person or company perform before listing the property.

Or they do that great of a job so you can't let the secret out the bag?