I've received an invitation to place a bid on a villa community for lawn care and snow removal, it's a 3 year contract and they want out clauses for each side. Hoping someone who is already doing these can chime in. I have advice from someone else that they always bid by the man hour, however I've always bid by the SF. With the amount of work required, I'd have to purchase more equipment... ie they want the sidewalks cleared for snow removal and that totals over 12k SF so no way could I do that with a shovel. They want the front yards pushed and bagged... so would need to purchase a commercial walk behind. Back yards and common areas can be done with traditional commercial equipment. My question is, if charging by the man hour, how do I figure out how long this would take? Including yards it totals over 11 Acres that need to be mowed so it wouldn't take much in terms of a mis-calculation to find myself in trouble.