First of all, I agree with all who have posted to you, none2007 They have given good advice. I might also add 2 more points.
First, try good ole fashioned kindness. Regardless of her personality, the truth is she's given a lot to the school and probably feels very unappreciated ( don't we all! [img]smile.gif[/img] ) It's hard to give up the reigns after a long haul.. the job becomes your " baby". So, depsite all the things she has done wrong.. why not just have flowers sent to her, on behalf of the PTO...( i guess you'll have to wait to get reimbursed.. LOL)... Anway, with a kind note that thanks her for her years of service, and you wish her well as she moves on to new things in her life!
Next, check your by laws and see why you don't have a Treasurer as part of your Board, if you don't, then work on adding one to your team. There's a reason that there are " Boards" and why more than one person should be accountable for the business of doing business, and you have run into the reason why.
Whether or not you can elect a Treasurer and get him/her on Board, I would start by opening a new checking account that requires TWO signatures for a check. ( that is pretty common practice for schools). I would then get 4 people who are eligible to sign. I suggest 2 people on your board ( preferably the treasurer), and then perhaps the school secretary, and maybe a seasoned, well respected teacher. In any event, this means that ANY TIME a check has to be written, at least 2 of those 4 people need to sign that check in order for it to be cashed.
I would recommend that the signers NOT be the school principal, or the PTO President.. there's too much liability for the " ones in control"... and I have heard awful stories about presidents or principals " bullying" boards to get funds they want/need.
Once that is in place, I would transfer the funds, and close that first account. You can THEN send her a letter informing her of the PTO's new check policy, and that the old account has been closed, and that you need the old checkbook records for tax purposes, as " I am sure, Mrs ex-PTO President that you don't want the responsibility of handling any tax issues with the IRS, should they arise"... ( of course that only works if you actually do deal with the IRS! ) [img]smile.gif[/img]
good luck, and keep us posted on your progress!