This article isn't answering your exact question, but it brings up a lot of the perks of owning a rental property versus investing in stocks.

Otherwise, the house has been updated and well maintained.

The tenants claim the property hasn't been maintained which may or may not be true2.

So I would say take a look at the housing stock mix of your home town and then adapt accordingly.   

The tenant is solely responsible for opening, maintaining and closing the pool.

Maybe provide them with a tip sheet on maintaining the appliances.

The best returns you get are inevitably going to come from the stock market but real estate has the added benefit of allowing leverage. 

Please keep in mind that nothing is every really turn-key though and you should maintain a repair budget just in case.For question #3, just being on BP and learning from other savvy investors is a start. 

I’ve found the best tenants to be senior citizens who don’t want to maintain a house but want to stay in the community they’ve lived forever.

In general, the members of a joint venture that is set up as a separate corporation or limited liability company (LLC) will only be liable to the extent of their investment in the corporation’s stock or their interest in the LLC.