All tokens represent legal ownership in a LLC that owns each property, you would not lose your investment
Each property LLC would continue to remain in existence as a separate entity for property holdings, tax, accounting, liability, and membership ownership purposes. Regardless, the property tokens remain independent and intact. If Propbase did go out of business, a new managing member would be appointed, who would oversee the processes. This could be a platform providing similar tokenized services or a legal entity. Owners who wish to recover or liquidate their holdings however, would need to pay additional fees described by the new holding entity, so please be aware of that risk.