Landlord Services in Cambridge, Somerville and Beyond

Meet your #1 investment property broker.

Ranked the #1 Top Selling Agent for Somerville Multi-Families in 2025 · 700+ rental transactions conducted · 100+ 5-star Google Reviews

Have you ever felt like you were born to do something? That’s how I feel about what I do. I was actually born in Cambridge, over on 73 Pemberton Street in 1984. I was named after a now defunct grocery store in Harvard Square called Sage’s.

I now own my real estate brokerage where I have helped dozens of people sell and buy their homes in Cambridge, Somerville and the surrounding communities of Greater Boston. I have over 100 5-star reviews and I truly value long-term relationships with all my clients. I can’t wait to work with you!

More About Sage

Why Landlords Love Working With Sage

“He found us a well-qualified tenant very quickly, after a couple of weeks of searching with no luck on our own.”

Sage was fantastic to work with… He was easy and fast to communicate with, and reliably did his part at every step. We will definitely be utilizing Sage's service again in the future! - Ed Miller

“Sage has rented our home several times. He is always professional and quick to respond.”

He carries on good relationships with everyone involved. He has also had terrific recommendations for plumbers/electricians/ contractors for work needed to be done in our home which is a testament to his high standards. I would highly recommend Sage. - Talia Brown

“Sage is a great agent to work with. He is extremely helpful, accommodating and very responsive.”

He is always ready to take extra steps to make sure his customers are taken care of. This is my second time working with him and I will keep working with him down the road. Thank you, Sage, for all your hard work and help. It’s not easy to find such an honest and dedicated person nowadays! - Hakob Mkrtychyan

“We found Sage very responsive and he quickly found the ideal tenants for our rental unit in Cambridge.”

We want to highly recommend Sage Real Estate… We have used other companies in the past and none compared to Sage. All the details were taken care of and the communication was prompt, clear and courteous. - Nancy Cullison

“Sage is one of the most professional and personable Realtors that I've dealt with in my 35 years as a property owner.”

He's organized, punctual, communicates well, always keeps me informed and never tries to oversell. And he's always connected me with quality tenants. I wouldn't hesitate to contact Sage in the future when I need to rent an apartment. - Chuck Robinson

“It was such a pleasure working with Sage that we will not only use him again but recommend him to all our friends and associates.”

Sage is a consummate professional, yet approachable. He is energetic and creative and really knows his business inside out! He is hardworking, pays attention to details and crosses every T and dots every I. Sage you will go far in this business. It has been a pleasure to work with you. - Katiti Kironde

Pick the right landlord service for you in Cambridge, Somerville & beyond

Below are a few recent multi-family properties that I’ve helped clients sell or buy.

509 Mystic Valley Parkway, Somerville

8 Pleasant Ave, Somerville

60-62 Line St, Somerville

10 Stickney Ave, Somerville

14 Calvin St, Somerville

11 Madison St, Somerville

Below are a few recent properties I’ve helped clients rent out.

345 Harvard St, Unit 1D, Cambridge

32 Jackson Rd, Unit B, Somerville

14 Chauncey St, Unit 6, Cambridge

Sage Jankowitz prioritizes building life-long relationships with landlords in Cambridge, Somerville, Medford, Arlington and beyond. He uses the idea of life-long partnerships to inform his entire process and approach. He provides honest, expert advice in a timely fashion and he creates business relationships that are beneficial for his owner clients.

Whether you're looking for help renting your unit, identifying a future investment property or development projects, or need assistance in preparing your property for sale, he is here to patiently guide landlords along the way.

With over 100 transactions closed in 2020 and over 100 all 5-star Google Reviews, many from repeat clients, he believes putting his clients front and center leads to win-wins for all involved.

Sage support landlords with buying and selling their multi-family properties, and he also provides additional services to help them manage their properties:

Renting / leasing your units
Pre-vetting tenants
Showing your units to tenants
Lease preparation services
Credit reporting and proof of income documents for prospective tenants
Vendor recommendations for common landlord needs (handyman services, cleaning services, etc)
Analysis of property for market rents

Sage will also be your consultative partner, and help you navigate complex and stressful issues. Examples below:

Tenant - Landlord legal disputes
Tenants breaking lease terms/rules
Inspectional Services challenges and fines from your city/town
Major property issues (such as water damage, fire damage, damaged roof, tree falling on property, etc).
Sewer leaks
Structural issues
Hoarding issues and clean outs
Hot water tank leaks
Major system replacements (such as heating and cooling systems, transitioning from oil to gas heat)

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What Landlords can charge tenants in upfront fees in Massachusetts.

In this video, Sage gives a complete breakdown of what landlords are allowed to charge tenants in upfront fees in the state of Massachusetts.

Fixed term lease vs. tenancy at will rental agreements in Massachusetts.

In this video, Sage breaks down the difference between the two main types of lease agreements in Massachusetts: The Fixed Term Lease and the Tenancy at Will Agreement.

Cambridge Sage Landlord Group

After working with hundreds of landlords, I realized that having a safe space for landlords to connect with one another could be beneficial to clients old and new. I am happy to connect Greater Boston landlords with each other through my moderated Facebook Group.