Mom recently passed away, and in her will, her financials (

Hello:
As beneficiary, you can demand to see a copy of the will. And if there had been a probate application, then you can contact the surrogate registrar at the nearest Court of Queen's bench office to obtain a copy without involving the executor at all.
If the Will requires that you are to do repairs or maintain the home, that would not compel you to do renovations to the property.
If the executor is abusing the authority granted to him under the a will, such as by insisting you must do something not specified in the will to maintain your residency in the home, you can apply to a court to seek a remedy, or even removal of him as executor.
A lawyer is not mandatory for this but the law and procedure involved is not simple and an experienced estates lawyer will be very useful. We are not allowed to refer you to specific lawyers here due to site policies. But the Law Society of Alberta has a free referral service and they have information on that at their web site.
I hope this is helpful. If you have no further questions, please rate the answer positively, as otherwise the site does not credit me, even if you have paid a deposit. You can still ask follow up questions after rating though, if you wish.