Section 2. (a) The conveyance shall be made under and subject, nevertheless, to all easements, servitudes and rights of others, including, but not confined to streets, roadways, and rights of any telephone, telegraph, water, electric, gas or pipeline companies, as well as under and subject, nevertheless, to any estate or tenancies vested in third persons, whether or not appearing of record, for any portion of the said land.
(b) In the event that the premises conveyed by this act are not used for the lawful purposes of the authority-grantee, title shall immediately revert to the Commonwealth of Pennsylvania.