It is a long heating element that gets wrapped around the pipe.

If you live in one unit and rent out the rest, you'll likely cover your entire mortgage and housing expenses, meaning you essentially get to live there for free!

I understand then I'll be paying two loans essentially, one for the down payment and the other on the mortgage.

Essentially everything but collecting rent.

Also, what's the point of a inspection company and 4pt inspection that covers essentially everything they are asking for? 

Meaning we cannot just provide the bare essentials to this new block of renters.

Unfortunately, many Section 8 tenants are essentially judgment-proof because they don't have the means to pay for damages such as this. 

Having mentors, and building a team is going to be essential to your success.

If the local utility supports Net Metering aggregation then you can essentially "assign" how much production from a single PV system goes to each unit, then with the right platform/systems in place you could bill tenants based on their individual allocated production (I happen to be in this type of multifamily solar niche). 

Essentially, he gets one side of the business from his clients and gives them an incentive to move the other side.