If you are being charged $400 they are probably using a licensed plumber with higher rates.From HomeDepot.com - The average cost of toilet installation ranges from $185 to $400 for all labor and materials.

By "better", I mean in terms of (1) return (2) licensing restrictions, and (3) state law. 

His post high school plans the last couple of years was to get his real estate agent license, with the ultimate goal of investing.

Ive been licensed 21 years and when I got into the industry.....everyone said the MLS going on the internet was the biggest change in 100 years and how the internet would put everyone out of business.

Lake Geneva has a license requirement for Airbnbs which will make it difficult to skate under the radar. 

@Robert Rixer, I don't know how creative these are, as many are common plays:Valet TrashFencing in first floor yardsProviding washer and dryers for added rentReserved, Covered parkingTech PackagesInternet and Cable contracts, with reimbursementsPayment Plan rents, with small service charge (i.e. bill 1/4 rent each week)Reserved Rental cabanas at poolPrivate pool party rental optionGolf Simulator in clubhouse - fee basedOn site, self serve car wash (quarter feeder style)Charged group fitness/personal training servicesGame room in clubhouse with monthly subscription for tenants (Xbox, Playstation, etc)Changing out high maintenance grass for astro turf or lower maintenance/lower water use shrubberyBut ultimately, I think a lot of NOI increases come from deep dive into understanding EVERY expense and finding ways to minimize them, and/or no outsource them.Train maintenance team on basic HVAC and appliance repairs (find way to get them licensed as needed)Buy paint sprayers for faster, easier turns versus having to hire a contract painter, and possibly repaint whole unit each timeStandardize all finishes, so you can buy in bulk, everything from hinges and door knobs to cabinets, paint colors, and light fixtures.Potentially get leasing people onto lower base salary with higher bonus potentialBulk/bundled insurance across portfolio (even better at scale is to self insure)Regularly test sprinkler systems for leaks.Non-NOI, but benefit to you: partner with insurance agency to get referral kickbacks from your tenant base for renter insurance.  

I'm a licensed general contractor as well so anything construction related as well give me a shout!

However, I'm not a licensed real estate broker, which means I can't legally hold funds in the state. 

After years of service, I'm diving into my second career focused on real estate investment, I have a particular interest in flips and short term rentals.I'm also a licensed real estate agent in Washington and have a strong drive to succeed in this field.

Readers are advised to engage a licensed professional who knows their situation before relying on their opinion.DRE# 02213689 CPA# 144976