if your bank allows you to pay off your loan early without penalty and you have excess funds, it is a good idea, especially if you have been paying a while and your rate is above 4 or 5%
Once the loan is paid off, you pay no more interests. the big priority is to pay off the principal as quickly as polssible.
Check also with your bank, to confirm you could pay principal payments without penalty which would decrease your loan in years.
hope this was of help and if you need any help with your other real estate issues, let me know,