How many proxies can you hold

Hi Everyone – asking for a mate at work. 

They’re a small strata scheme of 12 units plus 6 parking spaces/utility lots. The EC (of one) has called an EGM to change the by-laws to have no pets and has had the usual bout of issues such as the SM being obstructive to the pro-dog side/not providing information on chairperson/only advising select owners/tenants not being notified/no noticeboard in the scheme/ no EC governance (can’t identify who is secretary and SM won’t tell) etc. 

My mate (as a tenant) has easily assembled the votes needed to block the special resolution made by the scheme, but we’ve been looking over the proxy forms and legislation and had a few question;

1. Is putting multiple lots onto a single proxy form legal in the case of multiple units/ single unit and single utility lot or does this invalidate the proxy form? i.e. I put my residential lot and parking space on a single proxy form, despite them having separate unit entitlements. 
2. Would a single proxy form listing multiple lots count as one proxy under the legislation (i.e. schemes under  20 only have one allowable proxy per person)? i.e. Proxy box filled out as: Lots 12 and 16 counting as combined unit entitlement for a vote. 
3. Can my mate hold one proxy, and his wife another? 
4. What should the actions be if the SM/EC member doesn’t play by the new rules?