I had the same or similar situation with an engineer from the US living and working in the DR. He only wanted a tourist visa so his Dominican wife could attend his brothers wedding in the US. He had no intentions of returning to live there and if he ever did, he would apply for the appropriate immigrant visa for his wife.That's true, but we didn't have one to submit. It was my wife trying to get a short term VISA
His brother, at my request, submitted along with her visa application a detailed LOI also spelling out the unique circumstances and why this should be approved for a short term visa (this was back in the day when short term visas existed in greater numbers and are 10 year visa was like winning the lottery).
She received a 2 year visa. This was back in the day when most tourist visa applications by Dominicans were regularly denied. I am convinced that the LOI helped make the difference. Of course, it is much much easier for Dominicans to get a tourist visa today and some practitioners eschew submitting an LOI, but I continue the practice when and where possible and the circumstances for the visa are somewhat unique.
It is really not much different than a company HR manager who receives a ton of resumes for a job, most of which are never read, except for those that are made to stand out.
For those so inclined to notice, this post is not about the DR to Europe scenario, but much of the information could be extrapolated and used there.
Respectfully,
Playacaribe2