With the closing of  acertain agency, I was wondering if there was any providers or any agencies, providing in-call in the Cockeysville/Timonium areas? or for that matter even Towson or anywhere in Northern Baltimore county?

When the original poster said, "With the closing of a certain agency..." he was referring to DayDreams. The link you provided for Tia and Sharon is an outdated ad with the old DayDreams contact info.

Take a closer look, they're back in business with a new phone number.  I confirmed with them using their old email addy.

Also, that add was not posted a week ago so the pictures might be from an old add but the add itself was placed on eros recently.