Fraud that voids a transaction ab initio does not toll or waive the relevant statute of limitations for actions to claiming fraud that voids a transaction ab initio.
Tolling a statute of limitations due to fraudulent concealment requires a threshold showing of due diligence by the movant, which can be disproved by delays in filing.
Acceleration of a mortgage note does not affect the time limits under state law on the right to foreclose.
Mortgagor does not have a private right of action against mortgagee under state mortgage licensing law.
http://media.ca1.uscourts.gov/pdf.opinions/16-2380P-01A.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.