Allegedly, someone told him they'd turn a blind eye to him making the repairs.  

The tenants allegedly did not leave. 

More specifically, for the HOA to forclose on something less than say a $5,000 alleged debt.

Any other investor could work with the alleged margin.  

As long as you're brokering in Texas, you cannot simply ignore a very recent professional inspection report and claim ignorance of the alleged defects claimed therein.

I googled it for you: A legal principle that bars a party from denying or alleging a certain fact owing to that party's previous conduct, allegation, or denial.Regarding security deposits, it will be given to you when you take over possession of the property.

Case in point: Governor's Point on the NC coast promoted their lots where the Realtors/Investors allegedly paid cash and flipped the lots numerous times between themselves and bumped the 'comps' from $100k to over $1M each.

A couple are in between jobs, but most have regular jobs.All of them have put their trust in a woman who allegedly told them she would handle everything, from the loans to legal letters.There was nothing for the investors to do other than to wait for their money to grow at returns of between 14.5 and 22.3 per cent.They were told they would own the properties, which would be repaired before being rented out within three to six months.

from  the website:Examples of legal matters that the Clinic is prepared to handle are:Reviewing court documents and other documents related to homeownership, rental disputes, and other housing disputesSeeking damages and specific performances from housing providers due to violations of the lawRepresenting individuals in housing disputes in Michigan courts involving rental issues or homeownership issuesEvaluating and/or filing housing discrimination complaints under federal and state lawFighting the termination of public housing subsidies dues to wrongful allegations or inappropriate cause

You can still (allegedly) evict for other violations, particularly if they are destroying your property.