They are brokers or have their own credit lines or are placing money for true private lenders. ( I used to hae a company that did this I had 250 private lenders that did loans for my clients and I was a HML. 

Any Insurance brokers who can provide me a quote for landlord policy in New Jersey and TX?

Aside from going after E and O insurance and a formal complaint with the broker and real estate board, this is also good advice and another avenue to pursue.

I am a broker, property manager, and investor here in Clarksville, TN.

I am a property manager / broker / investor up here in Clarksville!

realtors. mortgage brokers. 

One thing you can also do is work as loan Broker for Investment properties, there aren't any age requirements, reach out to me directly if you are interested.

I am a broker but also started my own portfolio a while ago house hacking so if you're thinking about doing it I have probably done it from house hacking to flipping, and everything in between. 

@David Lutz this is fantastic.I am a Realtor and was a mortgage broker for 11 years prior. 

For me it started out being a RE broker and listing other developers product 50 years ago :) so you kind of grow into it..