Windows in property

[Shaunta M.]

Hi everyone i purchased a property and found out from the tenant that all of the windows are sealed shut. I’m not sure if this was done on purpose or because they had been repainted and dried shut over the years. The tenant says she had someone to break in the front window recently but for reasons unspoken I feel like that may have been someone she knew that couldn’t get in she has a family member staying with her. However, should I replace all of the windows in the house? I’m concerned that it’s a fire or safety issue?