Converting to handicapped accessible

[John C.]

Market rent in our area is $550/door for a 2 bedroom apartment. Because of our location and amenities plus the fact that these are ground level garden-style homes across from a rapid transit station we are exploring the idea of converting to full ADA spec handicapped accessible. The question is what sort of bump in rent/door could we expect if such a conversion were made?

TYIA,
JohnCl