Anyone have experience tax lien investing in NJ?

[Thomas Visaggio]

Has anyone here had the opportunity to invest in tax liens in NJ's urban markets. I am interest in hearing about others' experiences and network with investors already in this space.

More specifically:

What percentage of your liens were you able to foreclose on vs were paid back?

What is the average interest rate you had to accept when buying a lien attached to a reasonable property (not land or super invaluable dilapidated building in a terrible area)?

Do you underwrite the liens based on the residual land value of the property which the lien is attached to? I am aware that anything can happen to the property from the time you purchase it until the time you may eventually foreclose (fire, town demolition).

I look forward to hearing your thoughts/experiences!