Here are the places I stayed at end of June into July of last year.
Now, mind you - my wife joined me on the Camino Finisterre so all the "communal" (if you will - i.e. Dorm-style) beds were no longer happening. These were all private rooms with en-suite. But I loves every one of them - they were beyond nice and quite comfortable:
Casa Do Folgo Turismo Rural | Cotobade 25, Lugar de Ordoeste, 15863 Negreira, Spain |
Albergue Ponte Olveira | Ponte Olveira 3, Mazaricos, 15256, Spain |
Hospedium Hotel La Marina Costa da Morte | Avenida Fernando Blanco, 26, 15270 Cee, A Coruña, Spain |
Pension Mirador Fin da Terra | calle Montaron numero 15, Fisterra, Spain |
I believe that fits your criteria to do Negreira to Finisterre in 3 days.
Juan in Casa do Folgo can pick up up anywhere in Negreira proper and then drop you back next morning if you so desire (technically the albergue is more or less around A Pena. We decided to walk to it from Negreira hence we did about 26 km that 1st day. He then dropped us off at A Pena right on Camino path next morning.
Also please take note that from Cee to Finisterre is like 14 km (in case you do decide to hoof it up)
Good luck and Buen Camino