Help!!! Need suggestions on how to get rid of rats.

Help!!! Need suggestions on how to get rid of rats. All ready have bait boxes through pest control, trapping with wild life company, had our trash chutes sealed from the trash rooms so they cannot go up that way, but they are still getting into homes. Anyone have any suggestions????? (Property is three story built around the pool, with parking garage under the property, styled like a mid rise in an urban area)

Farnam is a good brand of rat poison. However; it will kill dogs, cats and any other animal so make sure no dog or cat can get to it.

Remember bate time so be patient. But! Sounds like roof ? possibly. Do you have any trees running against the roof line? If so have them trimmed back from the buildings. These rats are very agile. Pest control can quote out remediation and seal the entry points. There is no quick fix but sounds like you’re on the right track.
It’s important that your residents do their part to. Walk your units to check for cleanliness. Advise them not to leave trash out.
Good luck ?

a maintenance guy needs to go seal up all holes around the exterior. Look at caps on the roof seal around them, betwen the roof and the siding. Also, need him to go seal up any holes under kitchen and bathroom sinks, pull appliances out and make sure there isn’t any room at all for a rat to come in. They can get thru small cracks. Remember they eat spray foam. So for bigger holes you might need to put some wood and then seal it. If you have any new construction going on around you even road construction that’s also where they are coming from. Good luck

Cats. Lol. Sorry, couldn't resist.