To preface, I have my real estate license and generally pull a list of presumed high equity(purchased more than 10 years ago), absentee owners in my target market and send out about 3000-4000 postcards or letters every 6 weeks or so. 

Your job is in Dallas, you are owner occupied?

Majority of DSCR Lenders do not allow Manufactured homes but do allow for Modular. 

Start with one close to home where you can learn and build a team.

Or for the high-end primary homeowner has no legal way to 1031 exchange; so the deferred sales trust is a no brainer.

Do have an idea of your preferred acquisition price and how much rehab might be required? 

There have been many investors who have been successful in mobile home investing.

Quote from @Melissa Conner: If you are an agent that is a landlord or you work with owners of rentals- you/they Just called Melissa. 

.: Hello All, I'm interested in building a Mobile Home Park on some property I have in Texas. 

But once I got the bills, I increased the rent with the tenant's approval and signed an addendum to the lease stating the rent increase would be X and the owner would take over utilities.