I don’t belive that a SBL is required either, but you could humour your SM by writing one yourself and getting it approved and then tell the SM to register it. (cost approcx $100).
SM works for you and he has to do what you say (so long as it’s legal) and their is absoloutely nothing in the act that requires ANY bylaw to be written by a solicitor. Could be he is not computer literate and so that is his problem.