Legal Question in Family Law in Washington

It would most likely depend on the individual judicial officer as to how many pages.

No as to double-sided, which is not allowed. Also, single-space will probably also be counted as double because the rules require double spacing.

Just write at the bottom of the first page "I declare under penalty of perjury under the state of Washington that the foregoing is true and correct. Signed March 20 at Parkland, WA. _____[signature]_________.

http://www.courts.wa.gov/court_rules/?fa=court_rules.display&group=ga&set=GR&ruleid=gagr14 is the rule for format. Pierce County Local Rules do not appear to have different formatting requirements, but review them yourself at http://www.co.pierce.wa.us/DocumentCenter/Home/View/3148 Attorneys put the firm name and footer within the bottom inch.

By removing all language except the lines and the "declare" language, place and date, I was able to get 19 lines. I would also make the caption area smaller.

Better yet, type your own without the lines and double-space. You can almost always squeeze a little more if you are careful. Also, remove unnecessary words in your writing. ("That" can usually be removed, for example.)