So, I waited until the course materials would arrive in the mail.

You have more risk not disclosing.I'm not an attorney, but generally it is all about what is considered a material fact.

Reduce labor expenses, you increase disposable incomes, reduce cost of goods, reducing cost of finished material goods, creating a compounding effect of savings that all culminate in a significant reduction in cost of housing production, increasing production capacity, increasing affordability, invigorating economic activity, raising tax revenues via the Walmart method of volume over profit margin..... 

Using this strategy can help you save money on improvements and eventually raise the value of the house.Make connections with nearby real estate agents, go to gatherings, and make use of BiggerPockets and other educational materials.

They had a track record of completing work, multiple crews, standard materials, and refinancing successfully.

Upon its effective date, this document hereby releases any mechanic's lien, stop notice, or bond right the undersigned has on the property located at ___________ for the work described above, including all labor, services, equipment, or material furnished on the job.

My question is does travel time and sleep time count toward material participationI’m aiming to qualify for the 500 hours of material participation.

It's on a nice big lot and includes a large metal garage/shed. 

Those companies ALWAYS make it a big deal. 99% of mold is non-toxic and unless they are "huffing" the material, they will be just fine. 

However, a lot of material from this book is available for free on his website.