I am a bit concerned about water long term in AZ and NV. 

We bought our first rental in dec 2023, this was to test the waters of being a landlord in the US.

I don't remember the precise words, but essentially he claimed that there was some sort of standard rental agreement applicable to the area and he could not (perhaps in reality would not) add anything to it at all, which struck me as oddly questionable.

With enough knowledge you can make a educated decision on which approach you take.My experience:I personally don't sign up for any program who take you aside during events and try to sell packages that is just blatant sales strategy.Once you sign up there is every attempt to make you sign for their programs for bookkeeping, registered agent, LLC or corp setup fee which have ridiculous even with platinum membership.Basic standard structure they suggest to take advantage of multiple deductions can be easily achieved by proper education or work with a good firm like https://wcginc.com  who is local to you.A umbrella C-crop to manage all other LLC properties and take advantage of many tax deductions that are not available with a llc, its also used to take losses up to 100K as startup expenses and dissolve the entity after few years.Few LLC entities for investing in Real Estate, etc preferably in Wyoming or Nevada ( you can find many companies online who can do this for $150 compared to anderson $1500-$3000) , they will claim they have a secret Operating agreement which is bogus.They certainly try to take advantage of tax loopholes and claim to be smart people, my view they are just taking advantage of numbers as per their own statements.

By improvements I mean that there is power, water and sewer/septic installed and working.

For instance, mismatched names, employment details, or salary figures should warrant further scrutiny.Urgency to Move In: Applicants who are unusually pushy about quick move-in dates may be attempting to bypass thorough checks.Reluctance to Provide References: Hesitation or refusal to provide contactable references from previous landlords or employers is a cause for concern.Cash Offers for Faster Move-In: Proposals to pay a significant amount up front, especially in cash, to expedite the moving process can sometimes indicate an attempt to avoid scrutiny.Unverifiable Identity: Difficulty in verifying the applicant’s identity through standard identification documents can indicate potential fraud.Tips to Mitigate Rental Application Fraud:Enhance Verification Processes: Implement stringent verification processes for employment, previous rental history, and identity.

-A water heater issue resulted in repeated mismanagement—confusing unit assignments—leading to extra costs to fix the same issue 3 times and on each occasion "more fixes" needed to the water heaters that I plumber said was needed.

Rents increases are not standardized and should be kept within the realm of market rents.

If you can't perform to the new standard were setting, I strongly suggest stepping back and hiring one of us who are setting this new standard. 

The properties have not only suffered from the interest rate issues but have been operating at a sub standard level.