I will say that I had a difficult time getting a person on the phone in the beginning a few times to get issues fixed, but I haven't had that trouble in a while. :) It seems best to e-mail them and request a phone call if you want to speak to a person about something. 

the more hands-on you personally are, and the more niche / creative / difficult the strategy is, the more the potential to cash flow (but also higher risk.)standard, professionally managed, vanilla LTRs in good neighborhoods basically don't cash flow right now with interest rates where they are.

Time to recover investment: around 10 years if I rent it for $1700 - paying cash.Cons:Impact on Primary Residence: Construction can be disruptive, foundation is old, and having tenants nearby might affect privacy.Time to cash: The rental income will be delayed by at least 6 months as I'm building the ADU.Tenant risk: California is tenant friendly and eviction can be difficult.

. - I didn't do a BRRRR since it was too difficult from 2000 miles away.

Texas is difficult as a Californian due to the extremely high Texas property tax, coupled by the CA state income tax.

Flips are labor and time intensive but are good for cashflow if done right but can be difficult for new investors without a good mentor.

Honestly the few others that can't be located will make this a difficult one.

The spreadsheet shows the net worth after 30 years is basically a wash between selling and renting it out, so it's difficult to justify keeping it. 

Having roommates can be irritating, but as you said duplexes are more difficult to find in most markets. 

It's closer than fusion and quantum computers but there are still some very difficult technical problems.