@James Masotti that gave me plenty to digest, appreciate that mentality shift and giving concepts rather than a cliche one-liner.

Instead of using a mobile home park as your example it gets a little easier to digest if you think of doing this to a single family rental or half of a duplex.  

You can use Google to identify the tracts that are approved in your state.

Since then I've been reading and digesting as many podcasts, posts, webinars etc from BiggerPockets that I can get a hold of.

@Jason Toledo Many tract homes in DFW do not carry mineral rights.

The servicer often services mortgages that have been purchased by an investor in the secondary mortgage market.servicingThe collection of mortgage payments from borrowers and related responsibilities of a loan servicer.settlement statementSee HUD1 Settlement StatementsubdivisionA housing development that is created by dividing a tract of land into individual lots for sale or lease.subordinate financingAny mortgage or other lien that has a priority that is lower than that of the first mortgage.surveyA drawing or map showing the precise legal boundaries of a property, the location of improvements, easements, rights of way, encroachments, and other physical features.sweat equityContribution to the construction or rehabilitation of a property in the form of labor or services rather than cash.tenancy in commonAs opposed to joint tenancy, when there are two or more individuals on title to a piece of property, this type of ownership does not pass ownership to the others in the event of death.third-party originationA process by which a lender uses another party to completely or partially originate, process, underwrite, close, fund, or package the mortgages it plans to deliver to the secondary mortgage market.titleA legal document evidencing a person's right to or ownership of a property.title companyA company that specializes in examining and insuring titles to real estate.title insuranceInsurance that protects the lender (lender's policy) or the buyer (owner's policy) against loss arising from disputes over ownership of a property.title searchA check of the title records to ensure that the seller is the legal owner of the property and that there are no liens or other claims outstanding.transfer of ownershipAny means by which the ownership of a property changes hands.

@Russell Brazil  I agree with Russ totally depends on what kind of real estate.. keep in mind that when you ask this on BP 90% of those on this site will gravitate to the only real estate is rental either sfr or small plexs or MF.. there are many many other types of real estate .take for instance in my mind one of the safest and most passive is investing in land in the path of progress.. pay cash and hold it.. nothing to it.. over time if you buy right or you buy a timber tract with middle age marketable timber species like Doug Fir or white pine  west  East  … these are very solid long term safe investments that you just make and sit and wait.some of the biggest money made in real estate though is land in the path of progress.. this keeps you immune from the ups and downs and risks of tenants.. 

Have they had trouble selling, was it inherited, does it include additional tracts of land, or solid construction traits not advertised. 6) Try to acquire with $5k or less down, and payments low enough to sustain long term in case of long vacancies.

I found one called ( Rainbow Knolls) old subdivision platted in the 20s but because it was under one common ownership  ( 104 lots) assessor on the assessors plat map showed it as a 15 acre tract.. we made an offer like it was one building lot.. then we got our HML to put 104 individual loans on each lot to the tune of 3k per lot we used that 300k to build all the roads and infrastructure.. we recorded each loan individually which caused the assessor to reestablish the plat. without having to go through the platting and land use .. planners did not like it I can tell you.. but now a days out west this is quite common and there are easier ways to do this.. in Oregon for instance they call it a lot confirmation.. there are all sorts of shadow lots lying underneath lots in the city.. takes 60 days and a few hundred bucks and a current survey and you can split lots as long as there is a shadow plat that was recorded back around the turn of the century. 

This all happened today so I'm still digesting it.