Should I pay off my balance?

[Gustavo Delgado]

I have a rental with a $76k mortgage balance at %4.5.  I also have an brokerage account with $72k that has been steadily growing. My question is: " Should I use the $72k and pull some money from another account to payoff the mortgage? "

That would be saving me around $275 a month on interest. In my market there are not a lot of other areas to invest those $72k but having a completely paid off property sounds nice.

Thoughts?