Most cost segregation study companies provide the quote for free.

There are specialty umbrella companies that don't require you use them for car and home.2.

.)- Average days on market- Absorption rate- Historical data on rents and sale prices in the area- Population growth- Main economic drivers (industries, individual companies, etc.)- Crime stats... if you know specific zip codes/submarkets that you'd like to target, the best data will come from local precincts. - and more..I'd recommend remaining active not only here on BiggerPockets, but in other valuable RE investment networks that you can find - i.e. local meetups (meetup.com, eventbrite, BP local events). 

Old post but I figure I would comment here... my Company, Maven Cost Segregation has done studies on projects like this.

This shows the importance of networking locally, building your connections and your "tribe". 

We're based in Tampa and, in addition to personally investing, I own a mortgage company that provides financing for tons of investors.

Quote from @Michael Challenger: I would connect with local people at meetups, that might give you some contacts for private money.

It was all really quick, and the time to complete everything happened a lot faster than I expected (which was a good thing).I was worried at first that I had to use all the partners that Rent to Retirement had, but it was really easy for me to shop around for different lenders with different terms and rates, insurance providers, and property management company.

@Christopher Smith there are many...but in my opinion really only three companies out there that offer the ability to 721 into a large and diversified REIT that i'd feel comfortable with. 

I found this deal from being a local.