Born in Saint-Josse-ten-Node, Brussels, December 26, to Alphonse Van Lint, originally from Hasselt, and Thérèse Amorison, a native of Hainault.
He studied the violin for two years.
At the end of elementary school, he received an award and a box with oil paint tubes from the mayor of Saint-Josse as a reward for a self-portrait he made, inspired by a drawing by Jacques Ochs (which Van Lint would later say marked the beginning of his painting career).
Helps his father in his construction and plastering business.
At fourteen, he enrolls in the Academy of Saint-Josse-ten-Node, studying drawing and painting courses mainly under the guidance of painters Henri Ottevaere and Jacques Maes.
He also studied sculpture and architecture. Here he became friends with the painters Gaston Bertrand and Anne Bonnet, whom he met in 1936.
Married Marguerite Lutte, a girl from Saint-Josse who he had known since childhood, and the couple moved to the rue de l'Union in Saint-Josse.
He created dioramas for the pavilion of the Belgian Congo at the Brussels World's Fair of 1935.
Painted interiors, landscapes like Sunday afternoon in Flanders (Dimanche après-midi en Flandre, 1936, Museum of Louvain-la-Neuve), views of Saint-Josse like Houwaert Square (Place Houwaert, Museum of Ostend), as well as portraits of his relatives and a few nudes like Seated nude (Nu assis, 1938).
Is invited to show his first paintings at the annual exhibitions of the Salon de Mai in Brussels.
He participated in the Art Jeune exhibition at the Atrium at the Botanical Garden of Brussels (1938) with Gaston Bertrand and Anne Bonnet.