Bill Gates' daughter Jennifer, 25, makes last-minute preparations for her ...

Bill Gates' eldest daughter Jennifer is making last minute preparations for her 'over-the-top' wedding to her longtime boyfriend that will cost 'at least' $2million, DailyMail.com can reveal. 

Exclusive DailyMail.com photos show tents being erected at Jennifer's 124-acre, `$16million horse farm in North Salem, New York, that her parents bought her in 2018 after she graduated from Stanford University.

Acquaintances of the 25-year-old champion equestrian tell DailyMail.com that 'everything is being tastefully done, even the port-a-potties are beautifully designed' for her wedding to fellow rider Nayel Nassar on Saturday. 

However, not everyone is pleased at the arrangements. 

'It's totally over-the-top. Just incredible extravagance and unpleasant for the neighbors and the wildlife that made their home on the farm,' an insider said. 

'Trucks are constantly coming and going into a field on the farm where deer used to graze. There's a noisy forklift and dozens of workers are driving around on ATVs.' 

One neighbor told DailyMail.com that the ceremony will be held at the farm.  

'Jenn's hoping the actual ceremony can be outdoors but in case the weather is bad, they've put up huge tents in one of the fields and they're also rushing to build several state-of-the art, temporary steel-and-glass pavilions,' they said. 

And with billionaire parents, the most wealthy and high-profile guests are expected to attend. 

'One of Jenn's security guards told me the guest list for the event will include a lot of dignitaries,' the neighbor added. 

'The guy insisted he didn't know names but Bill and Melinda are pals with people like Barack Obama. I understand that a request has been made to the town to close the road that goes past the fields so as to give guests ''privacy'' during the ceremony.'

Another source estimated that construction costs for the pavilions will be 'at least $2 million.' 

Her wealthy neighbors in North Salem include David Letterman and another riding champion, Georgina Bloomberg whose father, former presidential candidate Michael Bloomberg, bought her a horse farm in the town in 2012. 

In addition to the horse farm, Bill and Melinda reportedly also purchased a $5million condo for Jennifer near her campus in Manhattan, where she has been studying to be a doctor. 

The equestrian and medical student announced her engagement to Egyptian show jumper Nayel, 30, in January 2020. 

The wedding is expected to go off without a hitch, despite her parents' $130billion divorce.  

Bill and Melinda finalized their divorce in August, three months after they announced that they were splitting after 27 years of marriage and three children. 

Jennifer is the only one of Bill and Melinda's children to publicly address their divorce and the impact that it has had on the three siblings, writing on her Instagram Story shortly after their announcement that it had been 'a challenging stretch of time for the whole family.' 

On Monday, Melinda was seen stepping off of a helicopter in New York City ahead of the big day. 

The 57-year-old philanthropist carried a Balenciaga tote bag and wore a Givenchy cardigan, black trousers, and Givenchy sneakers. 

Meanwhile, her ex Bill was on the opposite side of the country Sunday attending the tennis match between Cori Guff and Caroline Garcia of France during the 2021 BNP Paribas Open in Indian Wells, California. 

He attended another match the following day between Pedro Martinez, of Spain, and Stefanos Tsitsipas, of Greece.