At KeyOpp, we’re always looking for ways to improve communication, transparency, and ease of access for our community—residents, rental owners, and vendors alike.
That’s why we’re excited to announce a major upgrade: we’re transitioning to a brand-new platform, Rentvine, to power all resident, owner, and vendor portals starting June 19, 2025.
This change means faster service, smarter tools, and a more seamless experience across the board.
For Residents: A Better Way to Manage Your Home
Whether it’s submitting a maintenance request or reviewing lease documents, your new Rentvine portal puts everything at your fingertips.
Key Benefits:

Important Dates for Residents:
- June 19: Our old resident portal will be deactivated. No more rent payments or maintenance requests will be accepted there.
- By June 19: You’ll receive an invitation from noreply@mail.rentvine.com to activate your new portal account.
- July 1: First rent payment will be processed through Rentvine.
⚠️ If you use autopay, be sure to cancel it in your old portal or with your bank before June 19.
For Owners: Streamlined Oversight of Your Investment
Managing one or multiple properties just got easier. Rentvine introduces powerful portfolio management tools with enhanced financial transparency.
Key Benefits:

Important Dates for Owners:
- June 19: Buildium access ends.
Please download any records or reports you may need for your files. - By June 19: Look for your Rentvine invite from noreply@mail.rentvine.com.
For Vendors: Easier Communication & Job Tracking
Rentvine is also making life easier for vendors by organizing tasks, access times, and communication all in one place.
Key Benefits:

If you’re a vendor working with us, we’ll begin onboarding you in late June. Expect an invite and instructions shortly after June 19. No action is needed at this time unless requested by our team.
What to Expect Next
On or before June 19, you’ll receive an email from Rentvine to activate your account.
Click the “Accept Invitation” button and follow the setup instructions. The process is quick, and we’ll include a helpful video tutorial to walk you through it.
Why We’re Making This Change
We’ve heard your feedback—and we’re taking action. This transition to Rentvine allows us to:
- Respond to service requests faster
- Offer more transparency with financials and documents
- Improve the user experience across devices
- Streamline communication between all parties
- Better support growth with scalable, secure tools
This upgrade isn’t just about software—it’s about honoring our commitment to serve you better.
Need Help?
We’re here to support you during this transition:
- 📧 Email: support@keyopp.net
- 📞 Phone: (628) 888-6650
- 📚 Help Center: https://help.rentvine.com
Thank you for being a part of the KeyOpp community. We’re excited to bring you this next chapter of property management—smarter, faster, and more connected than ever before.
With over 30 years of real estate experience, Lawrence brings a family-focused approach to Real Estate. Starting early on by assisting his father with hands-on repairs and maintenance with various properties and later assisting with the backend operational processes, Lawrence along with his wife Melanie Leung have a developed multiple businesses focusing on all aspect of Real Estate including, but not limited to, Property Management, Investment Strategies as well as Buyer and Seller Representation. By working in multiple aspects of the real estate process, he brings a multi-faceted perspective to the buying and investment process. As a duo team with a strong knowledge of property investment, Lawrence is able to provide all the necessities an investor needs to make the smart choices.
Having grown up with parents working in real estate, I found my passion for this industry at an early age. I chose to follow in their footsteps after seeing how many clients they were able to help fulfill the American Dream of Home Ownership. After 7 years of working extensively in the San Francisco Bay Area, I have developed a keen understanding of the local market and always take the time to figure out what clients really need from me as a professional real estate broker. I take pride in serving my clients with the utmost level of care and professionalism. It is my job to ensure a smooth, worry-free, and satisfying experience for everyone involved.

Nathalie began her professional career in software and data management. Working with imperative government statistics, Nathalie developed a strong attention to detail and exceptional multitasking capabilities. As a technical support specialist in the IT industry, Nathalie began to deepen her desire to help people and provide excellent customer service. Driven by a mission to be user-centric and customer-focused, she approaches all customer interactions with sincerity and an eagerness for improvement. She’s your go-to person when you’re stuck, need help, or just need someone to listen.
Erika May Roslin has a BA in Accounting and has professional experience working in finance and administration. She has a robust appreciation for accuracy and precision which makes her well equipped for bookkeeping within the real estate and property management industries. Erika has also developed excellent customer service skills and highly values customer satisfaction. She strives to make customers and clients feel happy with their products and services and seeks feedback to further improve operations.
Cherrylane has developed excellent customer service and conflict diffusion skills during her 20 years in the gaming and casino industry. Patience, honesty, and professionalism are at the heart of her commitments and honors her work with integrity and confidentiality. As Cherrylane pivots into the BPO (Business Process Outsourcing) industry, her advanced customer service experience is extremely useful in ensuring customer satisfaction and support. She has worked and interacted with people from diverse cultures and from all walks of life, making her personable and empathetic. We’re thrilled to have her as part of our operations team.
Emily is originally from Los Angeles, California, and graduated from Chapman University with a degree in Business Communication. Her first experience in a leadership role was as a department manager at Nordstrom. It was here she developed her skills in people management as well as client retention. She was awarded with a “Customer Service All-Star” award by the CEO for her creative problem-solving skills and stellar success in giving customers the utmost best service. Following this chapter, she moved her expertise into a Project Management role at an Architectural Engineering company in Southern California. It was here she found her passion for home design and ultimately real estate. With Emily’s combined people skills and passion for the business of real estate and property management, she is thrilled to help grow all facets of KeyOpp.
Katrina embarked on her professional journey as a Digital Marketing Specialist in Real Estate right after graduating in 2019 with a Bachelor of Arts in Business Administration, majoring in Marketing Management.
Kristine Cordenillo’s fascination with the concept of home got her into the property management industry. She believes the home is a significant factor in shaping a person’s identity. She was previously a Lease Management Manager for a property management company based in Michigan for about five years. She is currently a candidate for a degree in Masters in Anthropology.
Calvin Yu is a seasoned professional with a decade of diverse experience, underpinned by a foundation in Business Administration from San Francisco State University. His career trajectory includes roles in food service, project management, and as a production associate at Tesla, each contributing to his robust skill set. In these roles, Calvin has demonstrated his ability to thrive in fast-paced environments, showcasing his hardworking nature, diligence, and patience. His time in the food service industry refined his customer service and operational skills, while his project management experience enhanced his strategic planning and problem-solving capabilities. At Tesla, he embraced the challenge of precision and innovation, further solidifying his adaptability and commitment to excellence.
Anupama’s journey began with a deep curiosity for design, leading her to complete a 3-year diploma in Design and Animation. However, her passion for Marketing and Real Estate soon took center stage. With 10 years of experience, she has helped brands scale and thrive by crafting strategic, data-driven solutions and building a strong digital presence.