I'm wondering what people's best experiences with low flow are, reliability, durability, best brands, savings seen, and if I should avoid the extreme low gpf toilets for water savings (0.6-0.8 gpf).

I would not take advice about a market from someone without any experience in that market. 

Based on my experience of running properties, even if the build were to cost you as much as $600k but you could generate $125k/year, you'd be very happy with that investment. 

Not having experience qualifying prospects I would think that the leads you would get from here, if any, would be..... challenging. 

Confirm that the provider has experience with the particular investments in which you intend to invest your retirement funds as you very likely will have questions in terms of the mechanics (e.g. how do you invest in real estate, etc.).4.

It’s a smart move, especially since it ties in with your goal of saving for your first investment.For skills, you probably already have a good foundation with your sales experience—things like communication, organization, and dealing with clients are all super valuable.

I manage around 400 rentals with 14 years of experience and have never been sued once.

Ask how many units they manage and how much experience they have.

Our experience is that many lenders/servicer customer representatives may not know the protections that exist for those that want to put asset protection steps in place. 

Coming from a family of lawyers the ones in my experience that make less than that are usually just not that motivated or are not that good at what they do.