Steam heat problems

[Mike Abramowitz]

Currently own a 3 family in the Boston area which has steam boilers for heat, (3 separate systems) 1 of the systems was no used for about 15 years until last year when we purchased the home. The other 2 were not well maintained it seems. We are now at the point where 2 of the systems are unbearably loud for the first 15 minutes or so turning on. We've had a plumber over to try and get them to quiet them down (didn't work) is it worth dumping more money into these systems or just biting the bullet and putting forced air heat in the house? (which would be significantly more tenant friendly)