Disclaimer ahead of time: not a lawyer, this is not to be taken as legal advice.That said: this all boils down to common law.If I want to sell you my shirt no one can tell me I need a license to do so.

Some states have certain legal requirements but for the most part, 30 days notice is common.

The most common and effective way to do this is by calling buyer, FSBO, and expired leads.

@Lesleigh S.Depends on your current loan situation, but one of the more common ways to do this is to transfer the property into your personal name if you plan to refinance. 

The listing agent being lazy or making an error probably isn't legally actionable unless you can show you lost something.

You’ll have a lot better results with a purpose built property than trying to split a house and expect guests to share common space with someone else.

You know what's even more common today?

Seems that we are in a growing pain period in which new prices are adjusting themselves out through trial and error.

@Larry Fullard You strategy is certainly one common way to use a HELOC.

Is this more of a tenancy in common situation?