As a builder we control the cost and we can adjust to our clients budgets when possible, or provide additional turn key services as blinds, rent units, pre-rent units or let their property manager start advertising even before closing to give our clients the ability to make money right away!

They controlled the board and the votes.

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.

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.

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). 

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.  

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.

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.