If Yes: Depreciate, If NO: if it a structural element or increase the life of structural elements?

This can be achieved by numerous ways, the easiest way I always recommend is google search for the lender, the contractor and the 1st page results or even "ad" results are probably going to populate someone sophisticated  enough to handle the process if they have the modern sophistication of the marketing element or public presence.

However, you can check out Elementor.

If you are tech-savvy just go with Wordpress and install Elementor Pro page builder.

I had the site built in Wordpress using the Elementor framework and then used the OwnerRez Wordpress plugin, widgets and short codes to enable bookings and calendar display.

YOUR JOB is to guess how long it will be before you need to replace each element or subsystem, estimate the future repair/replacement cost, and set aside the funds to accomplish this painlessly.Another little factor to consider, is the fact that the specific products you select play a key role in terms of fundamental design life, as well as how well they hold up to average, or harder than average, tenant wear and tear.

And I'll have to say that Wordpress is what I prefer with the upgraded Elementor. 

She is not someone who is comfortable with being out of her element or taking any type of risk.

Start clamping around and see what's drawing high amprage.As far as the water heater goes, does it have one element or two?

If you don't really know anything about construction,I'd suggest you begin my learning each element or part of a house, from the vapor barrier at the foundation to the ridge of the roof.