Rhino is an insurance program, and I do not recommend them.

For jacksonville I would highly recommend Elenis at Thirdstone Properties. 

I recommend doing your homework on the topic. 

Starting with local credit unions is a good idea.2 - I recommend starting your search with a Realtor who specializes in working with investors.

So, let's hope I get a recommendation.

If you can get financial support to get a duplex/triplex, I would recommend this.

@Serge Hounkponou Recommend you first figure out the property Class you want to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Which sites do you recommend for pricing? 

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

I recommend you read some books on how to manage investments well.