Mice... and how to stop them

Hello Brownstoners. Between a never ending renovation on one side and a home who’s owner is now in elder care and his property in overgrown and disrepair, I saw 2 mice this week. My surrounding neighbors have been dealing with them too but for many it was seeing them in yards and a few neighbors have noticed them in their homes too. I do not want to go crazy with the hazardous and toxic chemicals so I would love it if anyone could recommend a friendlier way to catch them (and their cohorts) and then find out the access points and seal the heck out of them. Any advice or recommendations would be appreciated.

Have a good weekend everyone.