Sadly, both of them escalated this conflict and started creating domestic disturbances so we had to move both of them out.Assuming the upstairs family is being reasonable, I suspect no matter what you do, the people downstairs will never be happy.  

No notable issues to date - mostly minor stuff. 

The next one was also a corporate cash buyer and after our second call, the acquisition manager confessed to me that he just got the job and asked me if I could train him on how to evaluate a deal!!!

No problem, work from home that day etc....

We consulted with a designer once, but saw it as no value based on what we had already done ourselves.

What is the best option for a landlord policy for someone who owns multiple rental properties(AZ and CA) and has no primary home or an auto? 

Maybe he's the exception.But the good news is - no matter what you do, if your brother just leaves it all as "passive" and doesn't mess with anything, whether short term rentals, or traditional rentals - the right tax planning could mean a box of his investment dollars that is effectively able to grow tax free. 

First two deals were cash, we were running business out of the locations and had the opprotunity to buy.. no brainer :)

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

Have you called the housing authority that covers this property to confirm the max rent based on the # of beds?