I am not sure but I don't think it matters where you are located.Texas is popular for series LLC's.

It is near economic hubs like Nationwide Children’s Hospital, Ohio State Campus, and New Albany.Turnkey properties are popular in Old North, Merion Village, Southern Orchards, Old Towne East, Driving Park, North Linden, North Hilltop, Franklinton, Reynoldsburg, and Hungarian Village.For BRRRR and Fix & Flip, consider Eastmoor, Hilltop, Whitehall, and Linden.

What I'm going to say is I see people who have experienced success in this arena, analyze many practice deals before they put their money down on the table for a real deal.

(to decide whether you want to analyze the property further or not)

The two earliest popular and successful “gurus” were Jimmy Napier, whose speciality was investing in notes, mobile homes, and real estate “exchanging”, and John Beck, whose speciality was tax auctions, and complex series of exchanges in which John used near worthless lots acquired for pennies at tax auctions at full tax assessed value for exchange purposes, usually as a downpayment, or as collateral for a private note.

I have been reading books on investing in multifamily and how to analyze and underwrite a property.

Analyzing hundreds if not 1000's of deals a week or month would be the key to getting to a million in 10 years. 

BP has various tools to help you analyze your deals (rentals, flips, wholesale, etc). : https://www.biggerpockets.com/investment-calculators7.

The cost segregation will analyze the property to find assets that can be depreciated faster than 27.5 years.The accountant you work with will be able to help connect you with a cost segregation specialist.The most difficult part is completing form 3115 which will also calculate the 481(A) adjustment.The 481(A) adjustment is the difference between the correct depreciation calculation less the actual depreciation taken.

BP has various tools to help you analyze your deals (rentals, flips, wholesale, etc). : https://www.biggerpockets.com/investment-calculators7.