Massachusetts has very strict lead laws. You always need to be sure of the status of the house before you renovate. If the property has been inspected for lead paint and some was found, you are not allowed to do any renovations until the lead paint has been taken care of and you have a lead certificate from the state. If you do any work before that that touches the lead paint, the property could get flagged for unauthorized deleading (UD) and you'll never be able to get a lead certificate, just a letter of environmental protection.
You cannot rent to a family with a child under 6 unless you have a lead cert on file, ever. Even if you know there is lead paint and you don't want to put the child at risk... you are required by law to delead. If you refuse the family because of the child, you are violating the anti-discrimination laws.
When you find property you're interested in, I can run them through the database for you to see if they have ever been inspected. If they haven't, you're free to renovate to your hearts content. If they have and have been issued a lead cert, same thing. Renovations are okay as long as you follow the RRP rules. If they've been inspected and not issued a lead cert, you need to hire a deleaded to get your cert, then renovate.
MA has passed a law where you have 90 days to delead a rental unit after you buy it in order to remove liability. If you don't get a lead certificate in that time, you are responsible for PAST tenants that lived there before you bought the place. They have basically attached the liability to the house and it transfers from owner to owner until someone deleads.
This isn't a bad thing, it makes a great negotiation tool when buying property. Since it HAS to be done, you can often get a concession from the seller. For negotiation purposes, assume $5,000 per unit and count the exterior as a unit. So a 3 family house equals 4 units to be deleaded = $20,000. I've never seen a building over at the $5000, and most of them come in around half of that. So even if you get a 50/50 split from the seller, you could possibly get it all paid for.
Good luck on your investments!!
Derreck