Matthew Ketchum is the main consultant at  @Akiya & Inaka  a business that helps international people (both Japan residents and non-residents) who are interested in buying properties in Japan find great deals in beautiful countryside areas.

They have a great newsletter, website and are very active on social media- not only promoting their own services, but also collaborating with and promoting the work of others in this remodel and reuse old Japanese housing industry. Official website: https://www.akiyainaka.com/