how to locate property owners that hide behind a management co

[Josh Wilson]

afternoon team, i am still working on building my database of mobile home park owners in the south east region.  i have had good success retrieving the property owners information by using the county gis websites but have also ran into quite a few roadblocks regarding owners who use an attorney as the only agent of an llc.  Has anyone found a way to track down contact information for owners that use attorneys or even a management company as the registered agents of the llc who will not give this information out for obvious reasons?