As well as 14 inches in the roof to create an airtight thermal envelope.

Ask them to help enhance it. 

Splitting these mountains, thousands of commuters made their daily southerly decent into the city along “The 51” highway, creating a slow inch worm like progressive movement of metal.

Not one square inch has gone untouched.  

This means that if you want to add features that enhance the property but may not conform to the standard checklist used by appraisers, you may not receive the desired appraisal value.

Get about another 9 inches of space.1New- China makes these things so cheap and the trade is so lopsided, China to US and not back, that a lot of containers are sold as 1 trip to the US. 

Brush up on building code requirements: in basements you're looking for egress windows that are 5.7 sq feet or more openable (3ft by 3ft casement style windows work best), and ceiling heights 6ft 8 inches or greater (as little as 6 ft 4 inches is ok under ductwork and beams though)Sounds like your basement would be a home-run to generate some extra rental income - Happy to talk through the details of that strategy with you, just shoot me a DM! 

Also, good property managers can enhance a property and its servicing with a multitude of resources.  

I've gotten one quote for far for $100 for anything 1"-6" and every inch after that costing an extra $20/inch.  

Among the specifications outlined by the FCC are that direct-to-home satellite dishes must be less than 40 inches in diameter.