The 16-year-old right side midfielder will travel to Birmingham on Sunday and the deal is expected to be completed by Tuesday afternoon.
Also travelling to the West Brom club this week-end will be Lee Jay's grandad, Tommy Lynch and his wife Annette and the player's uncle Barry. Lee Jay is expected to travel with the Baggies on their two pre-season tours.
While he is in Birmingham over the next two years, the talented Irish international schoolboy player will continue his academic studies.
Scouts from West Brom were in Limerick for the Kennedy Cup tournament recently and were looking for a promising centre half with a view to signing him on a two-year contract but it is understood that the club has no immediate interest in making a further local signing.
Lee Jay Lynch's contract with West Brom is a major achievement for the CBS student who has shot to prominence after a number of outstanding performances with the Republic of Ireland under-17 team.
He scored a brace of goals for the Republic last February against Finland after coming on as a second half replacement for Gavin Holohan in Buckley Park in Kilkenny and followed that with another solid performance a few days later against the same opposition.
Two other transfer hopefuls returned to Limerick recently. Shane Duggan, son of former Limerick United star Gerry Duggan, is back after trials with Plymouth Argyle while Conor Kavanagh has had a trial with Blackburn Rovers. Kilmarnock are understood to also have shown interest in this player.
Lee Jay Lynch will become the latest in a long list of Limerick soccer players to sign for cross-Channel clubs. He is the third generation of the Lynch family from Carey's Road to gain football prominence. His grandad Tommy Lynch was an outstanding midfield player with local club Caledonians while his uncle, also Tom, played with Sunderland, Shrewsbury, Gillingham, Limerick FC and Waterford United. He also managed the latter two clubs.
A 5th year student at Limerick CBS, Lee Jay has been an influential member of the Regional United underage squads after short spells with Roxboro and Janesboro and was one of the stars of the CBS side that won the Munster Schools under 18 Cup this year. He has also been a member of the FAI's development squad for the past two years. His sporting career was not just confined to soccer. He was a promising rugby player, starring at out-half with Young Munster under 16s and hovering on the fringes of a call-up to the Munster underage rugby development squad last season.
Prior to committing himself to West Bromwich, Lee Jay had a trial with Blackburn Rovers.
He now follows a route taken by other prominent Limerick-born soccer players going back almost seven decades that includes former Irish internationals Bud Aherne, Rory Keane, Johnny Gavin, Billy Hayes, Joe Waters and Don Givens as well as the uncapped Tony McKeown, Gerry McCarthy, Joe Hanrahan, Willie Boland, Paul O'Donnell and Tommy Gaynor.
"It's a great honour for Lee Jay himself and also for the family," said grandad Tommy Lynch this week. "We are steeped in football in our house and this is going to be a big challenge for the youngster. It is going to be a big change for him to be living away from home but he has his head on his shoulders and the best thing is that he is prepared to listen to advice.
"Football is all about luck and taking the opportunity when it comes along. Sport can be cruel at times but you have to be optimistic. The main thing is that Lee Jay just loves playing football and he enjoys every single game he plays in."
Regional United made a presentation to their star player last week acknowledging the contribution he has made to their club.