Tenant Eviction - Please Advise

[Rudy Manna]

I have a Tenant who is hasn't paid me this month's rent and giving me all sort of BS. She said she has posted, that never reached me, and now saying that money order is cashed.

I am left with no other option but to start the eviction process. The good things is that the lease expires end of the month and haven't yet renewed the lease.

The rental is based in Pierce County/Washington.

Here is a couple of questions I have:

1. What is the first step I should take. Send a certified mail to pay or vacate? Do I also need to post on the door in addition to the certified mail?

2. The fast that the lease expires end of the month, does that make the eviction easier?