The addendum states"Tenants hereby expressly and knowingly release, discharge, and hold harmless Landlord from any and all liabilities arising from any injury, harm, loss, or other events which may occur as a result from Landlord's dogs.

Also, be mindful that with new law change of allowing the 1031 exchange only for the real properties, the cost seg might be harmful depending on if you want to ever do 1031 exchange.

Does more harm than good.  

That is because if you walk you may be doing serious harm to the seller.

:-)  No harm though if you want to run 6g wire for that extra peace of mind.

Will they actually teach anything of substance? 

We need to know bit more on how you plan to finance the whole thing before we can give you something with more substance 

If you simply mean it is an traditional residential investment loan, no harm no foul.

It's just a little greasing of the palms and as long as there's no harm and no disturbance, everything is smooth. 

After all the sole focus is collect your rent so who cares if this does actually exist and could do harm both mentality and physically.