Thoughts on this bi-continental approach to retire early
I am targeting retirement in my early 50s. I will have a child who will be in college at that time. Currently own a house in a nice neighborhood of the Bay Area. My goal is to downsize this house and buy something outright in San Diego where we have a lot of friends - likely townhouse or nice condo to minimize upkeep. Goal is to spend 7-8 months a year in the US and then 4-5 months abroad. I like the idea of having a home in the US that my kid can return to when we're back on their breaks, summer, a place to store my things, etc. I will probably rent it out for several months while I am away.
My goal is to find international locations where I can spend 8k/month or less to balance out my higher spend CA months. My SD property carrying costs will likely be around 36k assuming no rental income.
Thoughts on this plan and feasibility of living decently on 8k in places like Lisbon, Valencia, Cape Town? These are just some places we've been before and really enjoy. Very active, into hiking, biking, connecting with others. Have traveled across Asia too and obviously know this can be done on much under 8k. Any other suggestions for someone thinking about an ExpartFIRE plan like this?