Would I have to move the money into my original LLC checking account at some point?

You will then have a few options with that rent money....you can put it into principal or you can start saving it to purchase yet another property.

I couldn't find any information on the scam pages and this product does not come with a money back guarantee.

I would suggest you find a good local hard money lender.

Unless it's a tremendous amount of money, it will probably be more trouble and cost to collect than you're willing to get into.

Pompano is trying to put a lot of money in the area by renovating local parks and community centers, but the gentrification of the area is still in the beginning stages.

If anything it complicates things and costs you more money. 

I would suggest to connect to other local investors as much as possible to network, educate yourself, make connections with title companies, contractors, wholesalers, hard money lenders etc, those will prove vital to your success.

My PM told me I am better off putting my money in a HYSA; a few realtors I have spoken to are just desperate to make a commission... no thanks!

Did this company give you any guarantees if you invest this money?