I have a few questions about the process of forming an LLC, the "roles" that each partner takes in the company, and what goes into a written partnership agreement.

If you use private money it's very easy to add the partner to a new or existing LLC via an operating agreement.  

One technique in a fast market, says Rachel Valentino, of Valentino & Associates LLC with Keller Williams Realty in Washington, D.C., is to agree to an inspection where you:Can walk away from the contract if there’s a major issue, like foundation trouble.Can’t negotiate with the seller over any issues that arise.This arrangement appeals to sellers because they won’t be hit with thousands of dollars in repairs, and it gives you an advantage in a competitive field.Similarly, if you’re competing against all-cash offers, which don’t require an appraisal, you can waive the appraisal contingency.

Should I create a separate LLC for the mobile home park or keep it under my other properties?

Do we have to setup a partnership/LLC together with him to allow this to happen, or can it be done another way?

Each is in the name of my LLC.  

Has anyone ever worked with Southern Title LLC in the Woodlands TX?

I’m curious to hear everyone’s mindset regarding obtaining insurance for your fix and flip LLC and coverage levels.

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

If she finds a duplex, lives in one side and rents the other side, wouldn't it be in her best interest to purchase it as an LLC?