Getting residencia application started

We are going back to UK soon to get my husband’s Irish passport sorted. Once that’s sorted and we have a few other things done in the UK, we intend to come back to Spain to start our residencia applications hopefully early next year. My husband will have both an Irish and British passport and I will have just my British passport. Can anyone give any advice on which solicitor to use in the Vera/Garrucha/Turre/Mojacar area and how we would go about it once we are back here again. Any advice gratefully received.