Tenants in a 207-unit apartment complex on Morton Street in Mattapan announced this week that they have signed an agreement with their landlord that will protect them from large rent increases over the next five years.

The Morton Village apartment complex was sold to a new owner, Avanath Capital, in July. This week, the tenants and the company agreed to a deal that promises five-year leases for all residents with rent increases of 3 percent per year for the first three years, and 3.25 percent for the fourth and fifth years. For residents over 70, rent increases will hold steady at 3 percent per year for the whole five years.

The deal was negotiated with support from City Life/Vida Urbana, the city of Boston’s Dept. of Neighborhood Development, and Greater Boston Legal Services. In the weeks leading up to the agreement, virtual meetings of the Morton Village Tenant Association attracted dozens of residents, and more than 100 residents signed a letter to Avanath Capital Management asking for negotiations with the goal of creating long-term housing stability.

Related: Tenants rally against anticipated rent hikes from new ownership

"For the next five years, these renters won’t have to worry about eviction or unaffordable rent hikes,” said Gabrielle René, an organizer with City Life/Vida Urbana.