Type of plat/survey. the benefits thereof...
Rule of thumb, show on the plat as the deed reads. Check to see what the assessor's map shows. I don't show lots merged unless they have been processed as such. If you do in some jurisdictions you have removed future options that may exist. Everything depends upon local ordinances as to grandfather clauses and such. This is the time to access the facts and advise the client of any options. The client may well have hard ideas about current uses and development, but in future things might change. Don't close and lock doors that might give future options to an eventual buyer.
Around here, it is called a Combination of Parcels Survey. And we put a note that the dashed lines are to be abandoned upon recording of plat. (Or something to that effect)
I would chime in with those that recommend leaving the interior lines alone. Around here, new lot lines are very expensive and difficult to come by, so I don't recommend getting rid of them just for neatness' sake, only if there is a really compelling reason to do so, like the owner wants to build on top of one of the lines or something. This gives them the option in the future to sell little chunks of the property to neighbors that would otherwise be a big hassle.
