Some of the mid size builders have in house sales departments that usually have a licensed agent or broker.

But they also take a "buyer/renter beware" stance and their view, based on my interactions with building department and section 8 inspectors is: as long as the house does not have cracking or chipped paint, the chances of it effecting people is basically non-existent.  

https://www.har.com/content/department/mlsHouston Real Estate Highlights in January, 2024:-Single-family home sales rose 9.0 percent year-over-year, the second increase in two years;-Days on Market (DOM) for single-family homes went from 60 to 58 days;-Total property sales rose 6.9 percent with 6,098 units sold;-Total dollar volume was up 11.9 percent to $2.3 billion;-The single-family median price rose 2.1 percent to $320,500;-The single-family average price rose 2.7 percent to $391,080, the first time that figure has been below $400,000 since last February; -Single-family home months of inventory registered a 3.3-months supply, up from 2.6 months a year earlier;-Townhome/condominium sales continue the declines that prevailed all through 2023, falling 4.0 percent, with the median price up 14.1 percent to $223,000 and the average price up 7.0 percent to $247,437.

I would also double check the city building department since (if I am reading correctly) you have two income producing units on this property.

It's best to check with the Houston Permitting Center to determine the specific requirements for your property.Generally, the permitting process will involve submitting plans and obtaining approvals from various city departments, such as the Planning Department and Building Department.

@Mitchell Hammack If the home is located in an area with other mobile homes, it's best to check with the zoning department to see if there are any restrictions when bringing in another home on the lot.

@Tim Bishop  its a fun business for sure.... but more to it than meets the eye as well I know there are those selling systems to do this and like all systems you get what you put into it.. when you say timber... can you be more specific  Timber ( at least northwest timber) is near and dear to my heart... pre tax sale is one of the best ways to purchase.. but in the old days it was not nearly as easy to run people down like it is today.. so the tax sale was the most efficient many tax sales my dad bought 200 to 500 parcels in a two day sale. so you had it brought to you instead of hunting it down

Plenty of other circumstances where this might be needed....bankruptcy sales, tax valuation suits, probate disputes, sales in business breakups, Treasury department sales.Hope that makes sense.   

After you take the courses and pass the exam you have to apply to the Department of Real Estate for the actual license. 

What about in  other countries is there such a thing besides the licensing body usually department or bureau???