Hello, I am planning on purchase two triplexes that have a single water meter for each property.

Look for the topics that catch your eye in the forums, when you think of a few you're interested in, hit the "follow" button to keep up to date on what is going on in those specific forums. - quick tutorial here  2.

How do you confirm that the person at the corporation is authorized to sign a lease on the company's behalf?

I have about $1M liquid currently but wouldn’t want to invest more than $200k on a property.

If anyone has any advice on starting construction, good place to find cheaper trim, doors, cabinets LVP etc, or even people in the Minneapolis/north metro that you would recommend for the job I would love to hear it.

I've been lurking and replying on a few posts for a few weeks.

Or, at least the company's offering them in other states think Texas law would not look kindly on the product so as you point out they do not offer in Texas. 

Only have the picture of the tree laying on the roof and a branch sticking out.

They do a thankless job for pennies and are expected to work 24/7/365.You should sell the property and move on to a property that makes investing sense.

If you are building from scratch, see if you can buy a corner lot to build a duplex that has one driveway/garage on one street and the other on the other street-they look more like a large single family home until you go around the corner.