Quote from @Sherry McQuage: Make sure to check the zoning to make sure mobile homes are permitted there; check for any hazardous waste designation for the area; will you need to have the parcels surveyed out in order to sell the size you intend? 

Then I paid for a consultation with one of their attorneys and it was very helpful and he suggested to keep it simple.

Every marketing strategy has to be adequately design for you, your time and what you like to do.If you don't know start with one and move to NM the next one.

There's honestly good, general advice above, but the answer to your question is really simple. 

CPAs often advise against pursuing this designation unless the time commitment and documentation are robust, as failing to qualify can result in IRS audits or penalties.The 500-hour rule pertains to material participation in specific real estate activities or businesses.

I looked at their Houston Fourplex presentation deck and it appears that the Southpark project is almost the same in terms of building design etc (the interior pictures of the fourplexes are exactly the same).I too am considering investing in their Southpark fourplexes so would definitely appreciate people sharing their thoughts and investment experiences.   

. @ Dan Rowley, your advice is so simple but spot on.

Hey James, I have a simple log book / spreadsheet I made for clients that maybe helpful to you.

I never have to drive there, I never talk to the tenants, it's simple.

Do I get with any architects or designer on the best way of fixing up the home?