You will have to first notify the tenants' case manager at their local housing authority who will likely want to dig into why you don't want to renew - in which case like others have mentioned, it's a good time to lawyer up and/or document every instance of them breaking lease guidelines. 

Form a team: Assemble a trustworthy group of experts, such as a mortgage broker, property inspector, real estate agent, and maybe even a property manager.

Looking to purchase 1-2 single family homes this year and trying to determine whether to self-manage or hire a property manager.

We inherited a management company and stayed with them for 5 years.

However, it involves more management and higher stakes with multiple properties.

(2) Are there any property management companies that can help us buy, finance and manage the apartment complexes and where can I find them? 

I manage my own STR's in PA and don't really want to have property managers for STR's because it's a market that requires more attention to details.

Property Management Experience:Living on-site game me a chance to learn about property management firsthand.

This book got me off the sidelines and in the game: Build a Rental Property Empire by Mark Ferguson and this book elevated my landlording methods: Managing Rental Properties by Heather & Brandon Turner~ Lindsey

Speak to them about their experiences and satisfaction with the firm.Look for testimonials or case studies that demonstrate successful investments and positive investor experiences.Evaluate Transparency and Communication:Assess how transparent the firm is about their operations, fees, and processes.Ensure they provide clear and regular communication about your investments, including updates on loan performance and any issues that arise.Analyze Risk Management Practices:Understand how the firm manages risk.