Best Luxury Flybridge Manufacturer 50’-70’

I would say Ferretti up till 2005/6 was a step above the other European builders. Today it is a very even battle in between all of them.
So I would put it in this order Fer-Pri, MCY, Ss-Azi, Fairline, then Absolute-Sessa, Cranchi, then Prestige-Beneteau. If you are considering 23 meters plus Sanlorenzo is the best name to go for.
Azimut has always been a design leader. They have changed how a cruiser and yachts functions since the eighties from ten to fifty meters. And at today still do so. For that alone they deserve huge praise.
I think in the last ten years Azimut have improved quality wise. I was on a 2018 53 Magellano the other day and was impressed how everything was labelled and accessible.
They have started the carbon revolution which now everyone is using for the super structure.
As a healthy financial company few are as good as Azimut. In the USA I think depends where you are located, as some areas have good Azimut dealers others less to others.

Ferretti in the 80s and 90s was super quality and I think at some points with some models they where very close to a Sportfish in systems.
Small work-bench in engine room, double to all important systems, fuel tank with decentralized systems, more fuel capacity, cock to make engines pull water from engine room, Gianneschi industructable pumps etc etc. Today due to a cost exercise this has change, and Ferretti is doing a product in similar specs to the other main stream European builders, which is also competitive in cost.
In that time Ferretti used to cost 10-20% more in price depending the size, to a Prin-SS-Azi.

Does Viking also handle the repair in New York like they do in Florida of the Princess’s?

As you are already on the East Coast, have a look at Hunt Yachts.

https://huntyachts.com/

Yes. Cruisers now owns the facility. Marquis does show an M44 model on their website.

If you consider european built boats you might as well check what Canados (Cantiere Navale die Ostia) has in its portfolio that meets your requirement and budget. Very nice and well-built boats with excelent interiour quality...
I´m not sure about that, but don´t expect them to have a US dealer.

They better be. It's over 3m for an M60.

In the 2's as 3 million seems a bit much. Perhaps that's why there are so many m60's available throughout the country on yachtworld.

Maybe when i'm 70 I would like the look of a Hatteras but for now it doesn't appeal to me at all even though it's the best made flybridge boat. I'd rather a Sunseeker 55 Manhattan or Princess F55. The Hatteras also has an 18 beam which is a huge issue where I boat out of.

Why is that a huge issue in Long Island? We've cruised there with larger beams so just curious as to the specific area and issues.

South shore of Long Island specifically Fire Island which is where most Long Islanders go on their boats do not have 20 foot wide slips to accommodate an 18'2" beam boat like the Hatteras. Even 16' is pushing it where I go with mine and I have a Sea Ray 48 DA with a 14'8" beam.

Ok and if that's where you must keep your boat, I understand. But very close to there you can find 20' slips to make your home base and when cruising, it seldom matters, as transient boaters have access to side ties on transient docks and are seldom impacted by beam.

I point this out only because we've enjoyed boating in the Long Island Sound and had a 21' beam or greater. Look carefully at marinas. Before we did the loop, we heard all the admonitions. Some said you'll never find docks for a boat over 50'. Some said 60'. Well our LOA was 69'4" and we had no problems. No, we couldn't dock at every marina on the loop but we didn't need them all. At any location we wanted to visit, we only needed one of the marinas there and always found at least one.

I'm not telling you to get a Hatteras 60 MY. But it's a heck of a lot more boat than a Sunseeker or Princess 55. If you wanted to go a step up on Sunseeker Manhattan's, you'd go now to the Manhattan 68. First a cautionary story on the 68. It's no bigger than the 66 it replaces which is no bigger than the 65 it replaced or the 63, which was the 65 but galley down. Our 65 was 69'4" LOA. The 68 is 69'1". We chose the Sunseeker over the Hatteras but the 68 has a 17'3" beam. The 65 was 16'10".

I love the Sunseeker Manhattan 55 and only you know your cruising plans. If they're 95% in the Sound and 95% 2-4 people then it's a great size. However, if you want to cruise the entire coast and run outside and carry 6 or 7 people on a regular basis, then you'll have to face the bigger boat, wider beam issues. Just don't be close minded to beam limitations. Decide on the boat you need and then evaluate marinas.