Most serious and qualified tenants are searching on the major 3rd party platforms you mentioned + realtor.com, redfin, and a few others.Apartments.com & homes.com are owned by the same company and may offer some additional marketing options.Another strategy to consider here is social media - video marketing.

@Kevin Zmick also consider if you have an area specific advertising forum, a local facebook group,  or an area specific advertising platform you haven't tapped.  

So yes, crowdfunding platforms are really just middlemen between investors and syndicators.

There are many people on instagram and other platforms selling courses appearing in a certain image, selling a lifestyle that is not 100% congruent with reality and sometimes reality can strike hard and shatter perceived illusions. 

See this BP blog for a numbers comparison - More Units Doesn’t Mean More Money—Why a Single-Family Home Can Beat a Fourplex.Stay focused on your goal, financial freedom; not following popular dogma.

Is there a platform where I can advertise a pool of mortgages for investors to buy/invest in?

I think you will find everything you need on one platform and happy to get you a free tour of the website

., If there are any issues with tenants or house needs maintenance, Doorvest reaches out to us by email and Doorvest also has online platform where we can keep track of all the statuses + income/expenses.

Davidson and Sumner counties have been especially popular lately! 

Hey there I would absolutely love to do that.I'm not really sure where to do it on this platform.