It's super loosely enforced. I even knew someone in Cambridge who was -renting out- their affordable housing unit. So you had someone who qualified at some poin

It's super loosely enforced. I even knew someone in Cambridge who was -renting out- their affordable housing unit. So you had someone who qualified at some point for a $850,000 3 bedroom in a prime Cambridge location for just a few hundred bucks a month, who just moved out and rented it out for 2500 bucks a month. They never got caught. Someone is always paying for that 20%. Hint: it's not the builder.