The level of pain you experience evicting someone really depends on the state you live in.

A JV structure is good for a one-off deal because the only commitment you have is to the investor(s) and that individual project or deal.So in part, the answer to your question depends on what your objective is. 

How much will depend on how well their processes are designed.

Depends on the person, but as a professional real estate investor it would be a no brainer for me.

Finally, depending on the use and if they were ever given any permission then there may be no claim.

From my research, I'm seeing $100-$150/sqft depending on complexity and material.

However, its subscription costs can add up, and the effectiveness of direct mail depends on execution and market conditions.

Then seller didn't have a clear marketable title and the ability to sell the property.So it really depends what the liens are.

For your agent to say you should not be concerned, again the answer is it depends.

Next, and again my current experience is in a different industry but one that's a highly dependent on Google reviews and ratings, I've found that there's always a break-even point where "paying someone off" doesn't provide enough of a return on the payoff.