We need to produce JSON with required fields: seo_title, summary, key_entities, expert_faq, internal_link_anchor, primary_keyword, secondary_keywords, content_type.

Word count for summary must be 180-250 words total across 3-4 paragraphs. Paragraphs separated by double newline (\n\n). Each paragraph 45-65 words. So total 3-4 paragraphs each 45-65 words => total 135-260 words. But requirement says summary must be exactly 180-250 words total across 3-4 paragraphs. So we need to craft 3-4 paragraphs each 45-65 words, totaling within 180-250 words. Let's aim for 4 paragraphs of ~50 words each = 200 words total.

We must bold a few key details, 3-5 bolded terms across entire summary. Use double asterisks. Must be selective: maybe bold "Cushman & Wakefield", "$15 billion", "U.S. Bank Center", "Peter Kolaczynski", "quarter". That's 5 bolded terms.

We must not use banned words etc. Avoid filler. Use active voice.

We must output valid JSON only, no markdown, no extra text.

Fields:

- seo_title: rewrite unique title under 60 chars, different from original headline, include main keyword. Must be <=60 characters.

- summary: the rewritten summary with paragraphs separated by \n\n. Must be exactly 180-250 words total. Must have 3-4 paragraphs each 45-65 words.

- key_entities: companies, people, locations arrays with only those mentioned in source.

- expert_faq: question and answer (30-50 words) based on article content.

- internal_link_anchor: 2-4 word topic phrase.

- primary_keyword: single most important 2-3 word keyword.

- secondary_keywords: 3-5 additional relevant keywords/phrases.

- content_type: choose "news" etc.

We must ensure JSON is valid. No trailing commas.

Let's extract entities from source:

Companies: Cushman & Wakefield, King County assessor’s office, Yardi, Kidder Mathews, Moody’s Commercial Real Estate Group, Seattle-based Sightline Institute, etc. Also "Amazon". Also "U.S. Bank Center". Also "Liggett Building". Also "Seattle". Also "Bellevue".