Does the humane society have any special program or day, when seniors and disabled person's of low income can adopt a dog at an. Affordable fee?

Occasionally. You would just need to check thier website when they have special adoption events.

Yes, the Tacoma Humane Society offers discounts to seniors. When my mom and I adopted our dog Chopper back in 2005 she only paid for his microchip I believe. Licensing is way cheaper than normal too.

On Tuesdays all dogs and cats older than eight have their adoption fees waived. I would call and ask them because I know they will reduce or waive fees for low income.