These ownerships interests are also referred to as fractional ownership interests.

A seller can also put the property into a simple Trust first, then sell you the fractional interest with you as a Trustee, not a beneficiary.

The date of death value of a fractional interest is not something that falls into the day to day experience of a licensed appraiser.

My HML company I had in the late 80 to early 90s was all investor based we had about 50 million of clients money and not one dime of our own in... these were all passive investors ( and in CA you can fractionalize DT's without the folks being accredited).. again a business.

So yes, there is a good deal offer and then there is an insultingly low offer where you are essentially stealing or hoping to steal a property for a fraction of the price....

The alternative is to use companies that can change direction of their original platform,sell out, only have a fraction of what you need, updates you need are at the bottom of the list or never get completed as they do mass subscriber items first.I have had hundreds call from Loopnet and Costar over 14 years in business and they try to sell you stuff all the time.

For example, I can get a handyman to replace a toilet for a fraction of the cost that a contractor would charge.

I work with investors down in Belize from fractional ownerships, undeveloped land investment to private islands. 

I have even hired unlicensed people to install septic drain fields for a fraction of the cost a contractor would want.

Please do update us because I'm interested in setting up a similar "syndicate" in Atlanta for a group of investors who want fractional investment in rentals.