@Roy N.If you mean the dark mark on the left side of the exterior shot, I believe that is a fireplace on a different property.

What is the material you used on the fireplace?

I have a flu that does not seal well on a fireplace.  

It was build in 1977 and still had the original wood burning fireplace.

@Christopher JohlfsCould you share what is the best product (primmer and finish coats) and prep methods of painting interior brick, like a fireplace? 

Mostly, The New American Home is a collection of ideas that the industry can take away — in large pieces, or bit by bit — and apply to millions of homes across the country each year.This year’s project is a collaborative effort involving builder Robertson Homes, home designer The Sater Group, interior designer Robb & Stucky and landscaper Outside Productions; all contributed unique and innovative green features to the home’s design and construction.Co-sponsored by NCHI and Builder magazine, The New American Home is a 6,725-square foot, plantation-style house located in the prestigious Waters Edge subdivision, a gated, 11-lot development adjacent to a private golf and country club community along the banks of Orlando’s Lake Nona.The two-story home is near a lakefront park and boat dock and features luxuries inside and out, with a family suite on the first level to accommodate an elderly parent or long-term guest, a first-floor master suite, an open kitchen and leisure room combination and an upstairs club room complete with theater-quality entertainment.The home’s 2,950 square feet of covered outdoor space includes a kitchen and salon with a fireplace featuring arched openings to the lake view and a landscaped pool and spa.To ensure the home’s energy efficiency and innovation, two U.S.

I burn them in my fireplace.

For example, do you make your property managers to clean gutters every year, service AC/furnace, service fireplace if there is one?

In Virginia, if it's in the lease, like tenant shall provide proof of professional carpet cleaning, fireplace cleaning, house cleaning, etc., then it is allowed. 

For example, can you block off the fireplace, but not spend to tear it down?