Manhattan law firm Nesenoff & Miltenberg LLP is now offering its clients the opportunity to pay their fees in bitcoin.

Marco Santori, senior associate at the firm, said a few of his clients asked whether they could pay using the digital currency, so the company looked at how they could work it into their bookkeeping.

"It's our aim to provide our clients with the flexibility to pay us in their chosen form of currency, and it should come as no surprise that clients in the digital currency space often prefer to transact in digital currency."

He went on to say that the company also wanted to adopt the 'practice what you preach' mentality – it represents bitcoin companies, so it made sense to show some allegiance to the currency.

"We represent clients in the three market segments of the digital currency space, so that's those involved in payments, mining and businesses that see bitcoin as an investment vehicle," Santori added.

He admits part of the reason he has done so much work for businesses in the digital currency space is because there isn't a lot of competition out there.

"There really aren't a lot of other lawyers who've dedicated time, resources and brainpower to figuring out a lot of these complex bitcoin and digital currency problems."

This could change over the coming months, though, with an increase in bitcoin companies seeking legal advice as governments start to take a closer look at which, if any, laws and regulations apply to the space