Between 1906 to 1914, LaChance designed at least 16 schools in Saskatchewan communities earning himself as aprominent figure in educational architecture during that period.

While LaChance received numerous commissions, some of them for large buildings, his career was marked by a lack of stability.

Apart from LaChance's self-promotional efforts, little is known about this stage of his career, and the fact that he would have been a teenager during this period raises a number of questions.

[1][3] Following his employment at the iron works, LaChance conducted his architectural practice in Cleveland, both as a solo practitioner as well as in two short-lived partnerships.

[1] LaChance continued to move his architectural office, to St. Catharines, Ontario in 1920, and to Niagara Falls, New York in 1921.

He died on September 23, 1951, in a convalescent home located in Fonthill, Ontario, and was buried at Woodlawn Cemetery in Welland.