Sometimes a pestering police presence can be a deterrent.If the suspicious individuals are engaged in criminal activity, calling the police while it's happening helps too.

However, if have several rentals and need to deposit checks, or use a debit card to pay utilities and other bills, etc. conventional business bank account would be the best choice. 

I applaud you for your thinking in choices you have made so far.  

Also narrowing down my realtor choices to see who will be able to help me the most.

Do each of the individuals investing in the syndicate need their own LLC?

I am in Denver, and if there were a choice I would go Townhome over condo.

If a cash out refinance, many lenders will allow the cash out to satisfy the reserves requirement.DSCR lenders generally let you vest either individually or as an LLC.

The price for these 4200 SF buildings are very low about $135,000 per unit leased at $1350 a month and they have high end custom finishes and private patios, covered parking for 2 vehicles and usually all individual meters.

If the Multi-Fam does not have individual utility-meters for all units, then you have to figure out what to do or it can potentially eat away at your cash flow.  99% of Single Family homes do not have this problem.These are just a few pros and cons. 

The price for these 4200 SF buildings are very low about $135,000 per unit leased at $1350 a month and they have high end custom finishes and private patios, covered parking for 2 vehicles and usually all individual meters.