I agree with Karen, but also it should be noted that normally the appointment of the president is for a term of one year, and he cannot simply resign. He can be removed by a resolution at an EGM, or apply to a judge to be relieved of his duties, citing his reasons for being unable to carry out the role.
I don't think there's any (legal) reason why a debtor cannot be on the committee, or even be president, but as Karen says, of course he cannot vote on anything, and it wouldn't seem appropriate. As for spouses or children being elected, again Karen is correct, but I can't see a reason why the named property owner cannot officially hold the role, but another family member who permanently resides in the same property actually perform the duties on their behalf. Not strictly according to the law perhaps, but since usually it's so hard to find anyone willing to do these thankless tasks, I would be happy that at least somebody steps up to the plate. Of course every community is different, but for example in our small community it's infuriating that some "owners" hide behind the excuse that their wife or husband is the one named on the deed, to absolve themselves of any responsibility whatsoever, whilst still expecting somebody else to ensure that "their" (when it suits them) community is in perfect order.