But back to my point, if the W2 employees of the company are also putting in capital on a regular basis, it builds credibility for the company, as well, since these are likely also people with behind the scenes knowledge of the company, but without the same incentive (or market demand) to invest in the deals, like the partners have.

I do STR in Arlington and make 2x what I would have made as a regular rental. 

You may also need 20-25% down payment and interest rate will be higher than if you can get regular mortgage financing.#3. 

Different people but it's also a group that provides valuable connections and knowledge.There are more groups out there but these are the two I visit on a regular basis and both have helped me on my real estate journey.

We have some properties with only street parking that get booked regularly.- I don't see the patio situation or the park across the street being an issue.

In my opinion, good sponsors communicate regularly (and at a minimum are sending yearly financials and quarterly updates). 

Some regular overnight guests and some were people who stayed with me from anywhere from 20 nights in a row to a couple of 6-9 month stays.

If you do end up going the regular rental route and want to self manage, check out evict.com which is one of the premier landlord/tenant attornies in the country.

It is only for the period of time that you need to acquire the regular commercial loan and pay back the HML, what are usual terms and rates for HML?

My regular pest guy didnt do termites, few in our area do.