It has a lot of panel discussion where you can ask questions and also has small group break out sessions where you can get very targeted answers to questions about specific aspects of real estate. 

But if there's any utility shut-off, electrical panel access, etc.

Since purchase, I took out a main wall between a kitchen and living room, removed all the dark wall paneling, installed fence, and drywalled/painted everything upstairs.

Electrical panel, breakers etc.

The speakers at the event mainly consisted of Tim Bratz himself, but was accompanied by some amazingly intense and thorough presentations by his law team, open discussion panels with other members of his team and his operations staff.

I've heard that a fuse panel being present can be a problem with bank financing, so that might give you some leverage or kill your financing. 

Updated electrical panel and furnace.

So really the only connection point will be where you punch through to allow access between the two buildings.Depending upon the electrical service of the old house, you may need a new, or separate sub panel for the new structure.

If this is all exterior lighting, it would probably be most cost efficient to surface mount the panel and your home runs.

Power - need to assure you have capacity in your panel to add the load for this additional space.