So there's a very wide variety of loan products falling under the broad "portfolio loan" definition.

It’s a double wide.

Rates can be a tad higher (figure the 5-8% range depending on a wide variety of factors like FICO,LTV, size, property type, etc) but the 30 year terms can often provide improved cash flow over the shorter term notes from local banks.

About 15 years ago there was more disparity between the uber wealthy and some lower income areas.

Your best bet is to talk to a wide variety of lenders and give them your scenario. 

While the city-wide impact might be small, I think the homes within a mile or two of that facility could benefit.

If you go this route you use a wide drywall knife, like a 10", hold it at a very slight angle, and just start scraping the popcorn down.

Anyway, the Duval county website has a handy property tax estimator - here's a link:http://taxcalc.coj.net/For a $150k house the property taxes would be about $2700 - assuming you don't have a homestead tax exemption, which would reduce the taxable amount by $50k.The rates for homeowners' insurance vary widely based on many variables - the age of the building, age of the major systems (roof/electric/plumbing/hvac), size, flood zone, and level of coverage desired.

In terms of Syndications -- there are a wide range of syndications and sponsors to choose from, with each deal having a different level of risk/return/sponsor experience AND business plan (development, value-add, etc.) 

This seems wide open.