Class C Felony - 1985 - Washington State

[inquiry]

My question involves criminal records for the state of: Washington

First, I have read the first 15 pages in this thread . . . and I appreciate your answers.
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I was convicted of Extortion - Class C Felony, 1985, Washington State. The prosecutor wanted 90 days I served seven days w/work release. In Florida, 1989/90 I bought some marijuana from law enforcement doing a sting operation - I believe this was a misdemeanor.

Q: Any chance of vacating or expungement of felony conviction in Washington State?
Q: If the conviction can be vacated, expunged or even sealed, it is possible the conviction will still show up in private databases?

I have read, "Please remember that we sometimes can vacate convictions that do not appear to be eligible because of unusual circumstances or the extreme age of he conviction."
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I've read statements written by some of you regarding "lie of omission." I don't know if I fully understand it / agree with it.

Q: If the company does not do a background check should I inform them of the conviction?
Q: Is it likely or not likely that most background checks go back to 1985?

Thanks

[flyingron]

You appear not to be eligible for vacating the sentence due to your subsequent criminal conviction, but I'd check with a lawyer in Washington state who has some experience.

If a company asks about convictions, whether they intend to do a background check is of little consequence, lying on an application if it is ever detected will be pretty serious.