Dave Blankenship Prepares His Final Will — What Legacy and Oak Island Secrets Did He Leave Behind?

What Happened to Dave Blankenship on 'Curse of Oak Island'? His Injury and Exit From Show

As the news of Dave Blankenship’s declining health spread across the Oak Island community, another development has quietly taken shape behind the scenes—one that adds both emotional weight and gripping curiosity to the final chapter of his life.

In the days since returning home to spend his remaining time with family, Dave has reportedly taken steps to finalize something he had long avoided dealing with:
his will.

Now, according to sources close to the Blankenship family, Dave has completed a detailed final testament that outlines not only the distribution of his assets, but also a series of cryptic notes, personal letters, and historical documents tied directly to Oak Island—raising the question fans have been asking for years:

Did Dave leave behind the island’s last surviving secrets?

A Man Facing the End With Clarity

Though physically weakened, those close to Dave say he has remained mentally steady and determined. In fact, preparing his will seemed to give him a sense of purpose and control at a time when his body was failing him.

A family member shared:

“Dave wanted to make sure everything was in order. He didn’t want his family left with confusion or unanswered questions.”

With his father Dan’s passing years earlier, and Dave himself being one of the last living remnants of the island’s old guard, he understood better than anyone the importance of documenting what he knew.

And so, with his attorney and son David Jr. by his side, he began shaping the legacy he would leave behind.

How Much Was Dave Blankenship Worth?

While The Curse of Oak Island portrayed Dave as a straightforward, blue-collar treasure hunter, the truth is that over decades of work—and thanks in part to his father’s real estate investments—Dave accumulated a surprisingly solid net worth.

According to individuals familiar with his estate planning, Dave’s total assets are estimated between $2.5 and $3 million, a mix of:

property holdings near Oak Island, including portions of the land Dan originally invested in
residual earnings from the show
heavy machinery and equipment
long-term savings and inheritance from his father
historical documents and private research materials gathered over decades

Though far from the riches the Oak Island treasure hunt promises, it is a meaningful amount—especially considering the Blankenships were not known to flaunt wealth or live extravagantly.

Dave’s will reportedly divides these assets among:

his son, David Jr.
several close family members
a small trust set aside for relatives of Dan Blankenship

But what has truly captured public fascination goes far beyond finances.

The Question Everyone’s Asking: Did Dave Include Oak Island Secrets in His Will?

For years, fans have speculated whether the Blankenships—particularly Dan and Dave—knew more about the island’s mysteries than they ever revealed on camera.

Dan spent over 50 years researching, drilling, mapping, and documenting nearly every square inch of Oak Island’s hidden structure. Dave inherited much of that knowledge, along with boxes of files and private journals most people outside the family have never seen.

Now, rumors from within the family suggest that Dave’s will contains references to this private archive.

One close friend of the family revealed:

“Dave didn’t want the truth to die with him. Whatever he believed, whatever he thought was important—he put it down in writing.”

According to this source, Dave included:

a sealed letter addressed to his son
a set of annotated maps passed down from Dan
personal notes detailing areas of the island he believed still held unexplored significance
a written account of conversations he had with his father during their earliest years on the island

Whether these documents contain true breakthroughs or simply opinions shaped by decades of labor remains unknown—but the intrigue is undeniable.

It is not yet clear whether the family will make any part of these documents public.

A Cryptic Final Page: “Dad Was Right”

Perhaps the most compelling detail comes from someone who claims to have briefly seen a portion of Dave’s written reflections—not the will itself, but notes included with it.

On the final page, Dave supposedly wrote a short but chilling line:

“Dad was right about the island. All of it.”

No explanation. No specifics. Just a statement heavy with implication.

Dan Blankenship had long insisted that Oak Island held undeniable proof of historic activity—man-made tunnels, booby traps, and evidence of pre-Columbian exploration. Over the years, many dismissed these beliefs as obsession.

But if Dave truly believed his father was right “about all of it,” the meaning could shake the Oak Island community for years to come.

Will the Public Ever See Dave’s Final Documents?

That remains the biggest mystery.

Sources say David Jr. is currently focused on spending time with his father and respecting his wishes. Whether he will eventually share any of the sealed materials depends entirely on how Dave structured his will.

Some believe Dave intended for certain documents to remain private forever.

Others think Dave wanted the world to hear what his father believed, especially after decades of secrecy, false leads, and unanswered questions.

One family acquaintance hinted:

“There are things in that house that have never seen daylight. If Dave chose to release them, it would be the biggest revelation since the show started.”

A Legacy That Will Continue to Shape Oak Island

As Dave Blankenship’s final days continue at home, surrounded by those who love him, his influence on the Oak Island story has only grown stronger. His will—financial, historical, and emotional—marks the end of an era.

But it may also mark the beginning of a new chapter, depending on what his sealed documents contain.

The treasure hunt may continue.
The Laginas may dig deeper.
But no one will ever replace the Blankenships.

And if Dave truly decided to reveal the final pieces of what he and Dan believed…
then Oak Island’s biggest secret may still be waiting to surface—
in the pages of a dying man’s last testament.