The tenant threatens to get lawyers, my concern is their safety, but I can’t get any justification to make improvements to the property for security.

I joke that he's the unofficial Mayor of Springfield based on all of the social and charitable activities that he does there.

@Vy LeRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

Connect with others in the real estate community—whether it's through social media, forums, or local meetups—to find opportunities.

Home inspectors look for safety.  

•Safety and Growth: McAllen, for instance, has been ranked among the top 5 safest cities in the U.S. since 2020.

Lastly, I don't know what your long term plans are, but having a house to return to in the States if your international adventures don't work as planned can be a good safety net for you!

I would also say that markets like Manhattan are not super representative of most markets in the US - a lot of foreign investment I'd imagine in NYC, Miami etc - I'd guess a lot of these cash purchases are more about exchanging unstable or risky foreign assets/currencies for perceived stability/safety of US top metro residential real estateI think in a lot of other markets where this isn't relevant - I think most are cash offers being "king" as not having appraisal or other contingencies that might sabotage the sale after 30 days or so and make people re-list (sellers will take less to avoid this risk and downside)

Any suggestions on where to start, what to look for, recommended reading or social events.

I promise it beats trusting social media gods.Investor list nurturing requires consistent communication.