I know that many plumbers and electricians will try to pressure you to do everything all at once.

Sure the city doesn't look inside the property, but what if you are in eviction court and the tenant shows photos of stuff that is not in compliance, for example a fire extinguisher that has the pressure needle in a position indicating it isn't charged?

Is there a possibility of using a ground mount for the solar, rather than the roof?

Of course, I do feel some self-pressure to find something, but I realize the fundamentals education alone is probably 6 months to a year.  

He genuinely cared about finding the right without property for me, but without being high-pressure or bombarding me with marketing emails.

Its low pressure but brings up the idea. 

(The tech was also watching it with the pressure gauges they usually use, and he commented that it closed the valve right at the pressure he was expecting.)The maintenance things I have had to do with them include: replacing the igniter on a gas furnace (about every 6-10 years, $30 for the part), replacing the run capacitor on the outside unit (once in about 15 years, about $30 for the part), replacing a fuse (once in about 10 years, about $5 for the fuse). 

I'm still starting out and don't have large Mounts of cash yet.

But, they had cash flow so I was under no pressure to sell.   5,6, 8, 10 years later, they recovered all the value plus. 

Pro -  You have no mortgage obligation every month so there is no need to freak out every month  a tenant is late with the rent.Pro - You have no mortgage obligation every month so there you don't feel pressured to rush to fill a vacancy with an unsuitable tenant.Con - You have no mortgage obligation every month so there is less of a tax write off and you are more likely to pay more taxes on your rental income.