"Heiress does NOT signify a familial relationship although often there is one.

Instead, " heiress" signifies inheriting things or having things passed on to you. In this case Kash says that @Q passed things on to one of Trumps female attorneys.

Additionally, the term heiress suggests those things have significant value.

Inheriting "wealth"? Perhaps a treasure trove of information; information that the attorney " heiress" is using /going to use to cause "mischief"?

Notice Kash includes the tidbit that these mischief makers are " down the street from bedminster", Trumps current headquarters.

As Q said, " trolling is fun". Obviously Q+ agrees.