I do not call them mentors, but at the end of the day, the role they fill is to provide advice based on their expertise and their knowledge of where we are in our business. 

Factors like real estate trends, property taxes, and competition also play a role.

I would start by thinking through who can serve that role for you.

Continuous evaluation of market trends also played a key role in setting the optimal sale price.

I’ve been reading extensively on strategies to minimize tenant vacancies through smart investments, and I’ve come to realize that many other factors play a crucial role when managing rental properties.

I inquired about the possibility of a two-company structure: A traditional LLC that is the public face of the activities (collecting rents, paying contractors, etc.) and managing the Series LLC with each property in once cell in it (in this case, Series LLC is serving as a holding role).Again, one attorney said that would be much better than a standalone LLC and that is recommended approach, and the other said it is waste of time and money since there are some requirements from Texas Real Estate Commission, which is requiring being a licensed broker in the state to operate in the managing LLC.So, just want to hear what other Texas investors are doing when it comes to series LLCs regarding these issues. 

Their role is purely administrative, so if you file incorrectly or choose the wrong entity type, you’re on your own.3.Hiring a Lawyer or CPA (White-Glove Service):This is the most comprehensive option, with costs ranging from $1,000 to $3,000.

What's annoying is the woman (one of the "expert" who played "mentor" role) kept on asking him rhetorical questions to prove the value of their program and act like it's the only way for one to succeed in the real estate market.

You could form a partnership with a couple people, delegate roles and start buying properties in a JV.  

Here’s how I’d move forward:Get a Real Estate JobLook for steady-paying roles like property management, admin work at a real estate office, or project coordinator with a developer.