I'm looking to pickup some multifamily real estate but the barrier to entry is crazy in my local market.

network with local agents to see where they took theres. but not much to it but go with who you feel comfortable with.

Would real estate prices in certain regions rise rapidly due to demand from both local and international buyers? 

Keep in mind local zoning laws and market conditions in Portland versus Salem—Portland might offer higher rents but stricter regulations, while Salem could provide better cash flow opportunities.Your design approach has proven successful, so continue focusing on appealing upgrades like kitchens and bathrooms, but prioritize cost-effective and durable materials for rentals.

can you invest locally instead?

I spoke to the local fire chief.

I would do what you are doing here on a bigger scale - social media, local markets she operates in Facebook groups, etc. 

So, having a local agent who is knowledgeable is where you will get the best guidance. 1.

I am a B to B guy  not a retail seller to one off investors.  

Next piece of advice is shop this deal around with someone through the forums or local real estate groups (google for your area).