For example in California there is a 10 year structural warranty by law (and shorter warranties for different systems).

I like reach to start and REI Reply once you have a system in place 

Every system you try will have flaws, or you may salivate over a feature that appears in other software.Some familiar names are mentioned frequently: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend conducting thorough research on each app online to understand their offerings, pricing, etc.

I want to develop a system where I can handle the maintenance and repairs through my phone without being there in person.

Every system you try will have flaws, or you may salivate over a feature that appears in other software.Some familiar names are mentioned frequently: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend conducting thorough research on each app online to understand their offerings, pricing, etc.

So this is what I want to do and then build my own systems/sales team.Any advice or experience is appreciated.

I would not use dynamic pricing software in OTAs' systems.

Even if every Concrete crew was "legal", wages would pull them to other low paid laborer jobs such as landscaping, house framing, meat packing, etc, causing wages and cost to go up for new Self Storage Construction, let alone availability.Security Systems- yep sourced overseas, China.Interest rates going lower, but I expect Inflation to go higher.

I also use OpenPhone for my phone systems, and I love it.

Once you're able to analyze the existing condition of these 6 systems, you can then source piece rate pricing from sub contractors or a GC -- this may be done by quantity, day rate, etc.