Rehabbing the old wood windows with brass weatherstripping ( like the used to do back in the day),  reglaze them and make sure they fit tight,  or caulk in the ones that you don't care to have open. 

Laguna Woods Village is “The premier Southern California active lifestyle community for people 55 and up."

Since it's relatively affordable I'm considering buying this for investment building a couple houses at a time and selling the houses to pay for more houses and recover my initial investment.Lot is heavily wooded and has its own lake.

Then, once you treat/fix the problem, you just need to take some basic steps to prevent them from coming back (i.e. eliminate any areas of wood-to-ground contact, address any moisture issues, etc). 

None of them know much more than an original picture from 50 years ago must look the same as today. 2) If you do get approved, doing stuff on a period piece is usually more expensive or inefficient (eg one place had to keep single pane wood sash windows for look/feel which very few people make.  

I haven't check out the War room Mastermind, but definitely will, thanks for sharing that with me.I'd love to connect, especially since you're moving out to my neck of the woods pretty soon!

thank you so much Roy cleeves, David Williams, AJ H, Chris Baxter.

First time dealing with houses of Wood. :)Best regards and thank you!!!

Designed by Los Angeles architect Grant Kirkpatrick, the architectural residence covers more than 13,500 square feet and reflects its coastal setting with a lively mix of warm wood, natural stone and Asahi glass.

I second and third what @Kevin Wood (an expert in the field for sure) and @Karl McGarvey mentioned.