Let's break down the numbers for the multifamily property you're considering in Chicago:The multifamily property in Chicago is a potential investment opportunity with a purchase price of $580,000 and a monthly rental income of $4,200.

As previously mentioned, I have never gone through this process yet and am a first time homebuyer, but have spent about 10 hours of researching per week for the past 6 months including listening to the podcasts.

Likely 99%+ of the recipients won't be interested in selling at the moment (and with a list that large, some of the data is invariably wrong or has changed since collection), but if you can stay in their mind for when they are ready to move forward with something, it's potentially worthwhile.If you've collected their data, likely someone else already has (or will soon), so differentiate and show your value. 

There's a ton of information online, including here on BP, that you can research.

Where do I start with researching this aspect?

Additionally, they don't have the time or resources to research and investigate Owners calling with questions on legality of property/building renovations or proposed changes.

DO YOUR research. 

Credit score requirementJob/income requirementDescription of yourself and other tenantsTo maximize your reach and find potential tenants, utilize various platforms, including:FacebookCraigslistApartments.comZillowRoomsterRoommate.comResponding to InquiriesOnce you create an awesome listing you will start to get inquiries.

Local Facebook groups of investors or subreddits can also be huge.2) Attend local meetups and REIA meetings, these can be great to meet potential clients and other contacts to source deals3) Friends and family CAN work but you should try this: set up a class on real estate investing, have yourself and other folks speak about how to get started and Invite every single person you know and if they're not interested, no problem, ask them if they know anyone that can benefit from that4) Longer term, but you can create content on available delas for Inst and TikTok, Real Estate investing is a hot topic and not many folks use those video platforms to show people real deals and how to get started.Best of luck.

Family relocating or I'm doing research now to explore the rent by the room model