My understanding is an E2 Visa is an investor Visa (ie. you need to buy a business) OR you can piggyback off an existing E2 holder. 

Major cities in Germany boast thriving business districts and strong demand for office space, making commercial properties an attractive investment.

Yes, operations is a big part of that, especially for anyone that wants to be a business for the long-term.If I were you, I would be talking to office brokers about partnering more than an online forum.   

You might want to consider using your equity in the land as your contribution to a partnership with someone that brings that sorely needed experience to the table.

I have questions about their business acumen though.

I'd like to meet the property management company and the business people(cleaning and handyman related) so I could paint a better picutre.Thank you for the info.

I wanted to create an STR experience and bring my bold ideas to life.

These are by far the least amount passive so do your due diligence on understanding how to run a successful STR business and researching local laws on allowing STRs.2.

I would advise anyone seriously considering buying a laundromat to bring in a technician to do due diligence with you.

If the IRS gets busy auditing them, maybe they will leave you alone.