I've seen these situations spiral out of control and lead to occupants neglecting/damaging the property, such as making holes in the wall to look for hidden cameras, nailing doors and windows shut, etc.

You are doing an incredible service to others.When I googled “Tax Lien Buyers Club” your post was the second result after their own website - the beauty of the internet is that Tax Lien Buyers Club can’t control the search results, as it is objective.I have never heard about Tax Lien Certificates before yesterday morning.

If they are behind and you don't already have the answers, I recommend you hire an attorney asap and get control of the situation quickly.

You're right in that it makes no logical sense so my best guess is that it's an emotional thing for them they have to work through.  

I don't know the law specifically in your area but the ability to control your property is over (at least on the west coast). 

Additionally, for rate-term refinances, many DSCR lenders have no seasoning requirements at all.Easier qualification: DSCR lenders have much lighter qualification requirements than conventional or portfolio lenders, such as no DTI, income verification, or tax return hurdles that can slow down or disqualify loansFlexibility: While conventional and bank lenders are heavily regulated and follow standardized rules, DSCR lenders have much more flexibility and control over their guidelines.

You have no real control over macro economic issues over the long term, which will have a higher level of impact on your building value.  

Obviously, the passive nature, but you can find an operating partner and you wouldn't need to give up control.

2) Rent controlled?

Additionally, controlling a larger asset through effective leverage can amplify your returns and build greater long-term wealth.By trading up, the extra basis form 1031 will also help you save on taxes.