Tanner, Mary Elaine (Executrix of the Estate of Donald Tanner) v Karlene Max Brown, Sophia Brown, Karl Anthony Brown, Radcliffe Brown (aka Raul Radcliffe Brown) and Jennifer Messado & Co.

Probate-Executrix overseas-Locus standi to bring claim-Affidavit evidence-Whether hearsay and inadmissible-Whether equitable mortgage valid-Whether promissory note enforceable-Interpretation of promissory note-Whether "on or before" sufficiently certain-Whether promise made by testator prior to his death enforceable against estate-Whether debt discharged-Whether equitable mortgage enforceable against non-parties to the loan-Whether equitable mortgagors estopped-Undertaking-Whether attorney at law in breach