I am assuming I need to hire a water leak detection company to use some sort of moisture detection equipment.

The standard of living doesn't apply only to her unit, especially within a multifamily, if the smell is being detected by the other units.

The 1000 number that has been promoted in the media actually includes hundreds of already existing officers who will be promoted to fill depleted detective and supervisory officer ranks.

First detected after an $11K water bill, prop mgmt. thought they fixed it, then the next month was $9K, meaning more repairs.    

The GFCI can detect current imbalance between hot and neutral whether there is a ground present or not, so this protection passes along to the "slave" receptacles that are fed from the "load" terminals on the GFCI. 

Great question and good detective work.  

They ripped all the copper off the furnace and water lines. needless to say we had thousands in damage and the buyers never returned, I purchased an alarm system with motion detection that has a built in cell number that notifies the police when tripped. 

I will get a mechanic stethoscope and trying to do some detective work first.

scammers at least the lending scammers are very simple to detect. 

I had a plumber look at it and cleaned/re-caulked where the foam gasket completely deteriorated and replaced the broken shower handle for 320.Then the restoration guy came and did not detect any moisture in the garage wall or upstairs bathroom.