Ownership credentials

In most associations votes are allocated per lot, not per owner. What do your CCRs say? As an example, here is what mine says:
Class A members shall be all owners, with the
exception of the Developer, and shall be entitled to one
vote for each lot owned. When more than one person holds an
interest in any lot, all such persons shall be members. The
vote for such lot shall be exercised as they determine, but
in no event shall more than one vote be cast with respect to
any lot.

If yours are similar, the owners should originally have had 3 votes. Generally it is also considered that "lot" means as originally platted, otherwise people could split large lots and gain more votes. Based on this, I would expect that in most cases they should still have three votes.

Typically, combining two or more lots into one does not change anything in relation to the HOA, unless your governing documents say something to the contrary. The reason is that your subdivision plat is part of your governing documents. You can go to the county and have two lots combined into one, but according to your plat and CC&Rs you still own two lots.

People sometimes combine lots to try to avoid paying assessments but in some states, including mine, the courts have ruled that it does not change the owner's responsibility to pay an assessment for each of the original lots. Of course, it stands to reason that you also maintain the same rights of ownership of each lot.

Every state has different laws so it could be different in CA.