Qualifying for mortgages when investing full time

[Phil Sharp]

I am considering quitting my full-time employment to invest in real estate full time.  I have saved up some significant resources to be able to do some all-cash purchases, but I would prefer to finance via mortgages.  However, I am worried I will not be able to qualify for mortgages if I don't have a full-time job.  How do full-time real estate investors (who are just beginning) qualify for traditional mortgages if they don't have a job?  In my case, could I use my saved resources to somehow reassure lenders that I have the resources required to service the mortgage?