I need blog articles for a real estate business in Valencia (ES)

I am in the need for blog articles (one per month) to publish on our website.

We have a real estate business in Valencia, Spain. We sell and rent houses and apartments in and around Valencia city. We want informative articles for potential clients, and to attract them to our website.

Subjects as:
1) How to get/obtain your NIE number in Spain
2) The best areas to buy a property in Valencia
3) How to purchase a property in Valencia?
4) How much does it really cost to buy a property in Valencia?
5) How to get a good tenant for your Spanish Property
6) A guide to Valencia’s 19 districts

The article should be SEO friendly, but still good readable to our (potential) clients.

Please sent me your offer/proposal, and let me know why you are a good fit for this job.