Something like this?
% a figure, red in color so it can be seen against the white background here:
figure('Color','r')
% some plot:
plot(1:10)
% set the axes position to remove some space around the axes:
set(gca(),'Position',[0.05 0.05 0.93 0.93])
% make a text object for the title:
xl = get(gca(),'Xlim');
yl = get(gca(),'Ylim');
t = text(xl(1),yl(2),'Here is a Title for the Plot', ...
'VerticalAlignment','top', ...
'FontSize',12);
% make a text object for the right-justified text:
ext = get(t,'Extent');
rt = text(ext(1)+ext(3),ext(2),'right-justified text', ...
'HorizontalAlignment','right', ...
'VerticalAlignment','top');
