Hopefully there are some arachnologists among you who might find the this short clip interesting (personally, I'm arachnophobic and this thing had me freaking out a bit)
https://youtu.be/zpRQEmf92gI
After a half hour of googling my best guess is it's a Brown Widow - the dark colouring on the legs, overall body morphology and light body colour match, but I haven't seen any other pictures of Brown Widows with black ventral hourglass markings. It's body is the size of a large blueberry and with legs extended it could touch the outer edge of a quarter, maybe even a loonie if fully stretched.
My concern isn't just academic as I have small kids and I don't want to deal with venomous spider bites... all comments and suggestions welcome (e.g. what is it, how to eliminate/relocate it).