Her 30ish daughter who is also a longtime employee of grocery filled out online app for her.

If it goes to an appeal and to the county courthouse then you have to get legal representation.

You can also check their reviews online at Google, Facebook, or Yelp.

If it's really being damaged by the property next door, they (likely) have a legal obligation to prevent damage to  your property, much the same way you can't change the grading and cause flooding on your neighbor's property. 

I’m scouring the country looking for a similar case or a legal expert with experience with whether such information is "private" and members who legally obtain it can be forced to keep it secret, or whether a fundamental First Amendment right to free speech might apply, especially where an owner has never signed any confidentiality or non-disclosure agreement before or after buying in.Thanks!

So take this advice realizing it is coming from an RE investor and not a legal/tax professional.I see lots of good responses but the responses are missing one option to consider. 

It's best for you to find someone that you can work with that is not the realtor representing the property you want to buy - while legal in many states - you want to ensure you are represented well, and it's your interests only that are being held. 

The Property Management amount is a Guaranteed Payment and is reported on line 4 or line 14 of that specific partner's K-1 with a notation of "A" as the payment type.All other profits and losses for that partner (and any others) get reported on line 2.Do not 1099 the partner.

If a Lease Option in Texas is structured the following way will it be legal? 

Most large syndicators/sponsors are now using online portals for investors to track their investment.