They are also known to mismanage money, which can result in huge assessments for common area improvements.

@Ricardo DiazYou are filing your taxes incorrectly if the property is owned as tenants in common and you are reporting 100% of the rental activity.

With this particular surveying company, they saw the error of their ways and provided the corrected survey with the correct lot numbers and easements in the proper places.

We’re familiar with the more commonly discussed routes of how to go about doing this, such as:Going to friends and familyCrowdfundingEquity/HELOC/House hackingPrivate moneySubject to/wholesalingPersonal loanRetirement borrowingGrantsBut we’re pretty sure we haven’t thought of everything. 

To your point, 75% leverage doesn’t always work—65% is common.  

The obvious ones are saving them the hassle of listing, and saving them money on agent commission if they choose not to get an agent; but I am sure there are other creative suggestions out there.Is it pretty common for the buyers agent to act as a dual agent in situations like this?

The truth is, you could read 100 books and still not know enough because certain things need to be learned through trial-and-error.

@Kenneth Rolfe same as @Mason Hickman, I've done this a few times, but it's not common.

Unfortunately that is a very common thing here.

Allocating common expenses - you can allocate common expenses based upon a formula of # of bedrooms used or square footage of each unit.