I am a contractor (painting) and investor in multis but have not purchased any in sometime. 

I am sure the civil action will be expensive for all.From what I read in the attached below you will need to be vigilant as negligence could be VERY expensive . https://www.peoples-law.org/lead-paint-law-rights-and-obligations-renters-and-property-owners

Our first rental we completely redid the inside (kitchen, flooring, bathroom, added a natural gas fireplace, paint, etc...) and choose not to replace the original 1960 windows.

.- There is mold according to the agent- I asked about lead paint and asbestos but agent wasn’t forthcoming (or didn’t know).- Building was built in 1940, all brick- There’s a loading dock and large garage door in back.

When I looked at it a few things jumped out at me; it looked like a manufactured home but it was stick built, adding to the look was a 1 X 6" molding between the "skirting" and the house proper, that was painted a clashing color, it was a 2/1 but there was an 8' X 14' laundry room that was crying out to be a 1/2 bath. 

If tennats want changes you must insure that lisenced contractors are used and supervised by either th elandlord or their PM.Never allow a tennat to do any work, not even painting. 

If I had bought the other house, the tenants would have mowed the lawn and removed snow, and I would have had to paint once or twice, which would have been away to add sweat equity. 

Paint the frames black and they will be beautiful. 

After living in our 2 story 3 bed 3 bath home for 12 years, we found that while moving out that our home needs paint, carpet, new flooring in the kitchen...etc.

Ive done it all, make cost increase sheets that gives the tenant the option to see what their rent will be if they wanted upgraded kitchen appliances, new paint, etc.