What you want, doesn't really exist. There are too many lawyers and not enough jobs to be able to coast at work. If you want to get ahead, you got to put in the time. If you don't want to get ahead, no one wants to hire you. Even for a relatively low paying job, why hire someone who has time constraints when there are literally thousands of other fresh new lawyers who are willing to put in the hours? As a newly minted attorney there is literally nothing you can do that another newly minted attorney can't do just as well.
Once you've got a few years under your belt, you might be able to find an employer who is looking for someone with your skill set, and won't mind you working less busy hours, but that is after you've got some skills, which you only get by working at an entry-level legal job, where you can learn how a lawyer works, and start to specialize in a particular field. If you've gotten experience in construction, you could work in-house at a builder; experience in loans and you could work at a mortgage lender. etc. But those kind of places don't have large legal departments and can't take on unskilled lawyers and train them themselves. And even if they could, they don't have to, because there are enough lawyers who've built up skills elsewhere looking for a change of pace.
Possibly the only way you could manage to snag a 40 hour/wk lawyer job right off the bat is if you go solo. If you can manage to pull in enough business to keep yourself afloat, then that's great.
The problem is, when you start your own business, you'll probably fail. A lot of people have the mentality that working for yourself means not having a boss. It should mean having the toughest boss you'll ever have. Because if you don't have the drive and energy (and motivation) to bust yourself building a successful practice, you are unlikely to be able to build a successful practice. Starting for yourself means you've got to do the work of 3 people: 1 to pull in business, 1 to manage the "office" (paralegal work, bills and billing, buying supplies, etc.), and 1 to do the actual work.
This means working your tail off until you've reached the stage where you can slow down a little (which might be never) or can afford to hire someone else to lighten the load (which might be never).