What equipment do you currently own???
What size properties?
(As asked by GLAN): Will you need to haul away the leaves, or deposit them on-site?
I use my BP blower to clear the beds, and edges, as well as a rake.
Then I use the Little Wonder to move volumes...... either off the property if possible, or to piles that I can put on tarps and drag elsewhere (with the Lazer

)
Last, I mow with the Ultra-Vac on to "polish" the appearance of the lawn...... This leaves a lawn that wasn't even visible when I started, looking like a fairway!
As far as mulching leaves goes.... I can only do that here if I do it every week throughout the season, otherwise buildup is too much, just makes a mess to be vacuumed up with the UV.. which works, but the Little Wonder is much faster.....