I think the biggest roadblock has been the lack of true testimonials of successful people in these programs.  

That alone was the biggest improvement for my business practices and allowed me to take all of my bookkeeping in-house and eliminate the expense I was shelling out for a bookkeeper.

.-- The biggest indicator of turning public sentiment was just last month, in December, when voters in Woodland Park approved a ban on vacation rentals that also appears to NOT grandfather in existing licensed properties. 

The biggest key to a good ROI is getting a good deal when you buy.

Since I cant account for what their money cost,I have found that is the biggest flaw.

The biggest factor will be how long you plan to own the property or when you think you may refinance.

That's the biggest piece that can surprise investors.

The biggest thing is don't defraud the public, and disclose all. 

What's your biggest time management challenge?

However, the biggest con is that you are sacrificing a bit of your privacy by living right by your tenants and it is usually a lot more stressful since everything is your responsibility - managing tenant issues, handyman repairs, taking care of the lawn, etc.I would strongly recommend house hacking especially in the Columbus Ohio market!