I'm a landlord in Ma and I want to put in surveillance cameras with voice recording in common areas/hallways.

In a way, we share a common link.

Easements such as this are common, and we often are compelled to grant them as conditions of new development projects. 

This seems to be referring to what is often called a "Registered Agent", or someone official in the state who should always be serve-able in the event a process, notice, order, or other legal item needs to be served.For example, many states require every LLC to have a registered agent, which is commonly the attorney that filed the company's formation paperwork. 

It's common here for people to put anywhere from 5 to 14 days for DD.I love the Atlanta area.

Same problem would arise for the new individual owners who share common roof and utilities. 

In my opinion, these are all common issues.

I would also invest some money that you would've lost due to vacancies into, common areas, exterior and any maintenance issues that have been neglected. 

If it is piers and integrity of the structure that can get costly, but if you are getting the property for a price that works it can still make sense.If it is lesser like replacing joists and subfloor that is pretty common in the central Durham area as many houses are built pre 1970.

I know of a few that sell turnkeys but they are not as common as they are in other markets(extremely common in cheaper markets like Kansas City etc).