She rented the lot only from us, on a m-t-m agreement, and owned her mobile.

That way you have access to all of the past webinars. 

Would there be a way to access it through previous FHA loan documentation?

Every real estate investor should know everything in this book, "50 Real Estate Investing Calculations".I prefer to have all my books on Kindle so I can access them anywhere in the world on-the-fly.When you first look at a property for sale the numbers always look boring and the basic numbers at the time of the purchase are meaningless.

I took a check one time, because I happened to be at the property and was going to the very bank that the tenant was on their way to for the deposit. 75% of our tenants pay electronically online, and the remaining 25% go to a local bank where we have a tenant access account set up and make their deposit that way.

There are a few self-contained guides that you can access here: https://www.biggerpockets.com/guidesAlerts can be really helpful too: http://www.biggerpockets.com/alerts

To give you an idea of costs associated with obtaining a license: RE course ~ $500, state and national exam ~ $200, fee to activate license ~ $200, becoming a member of the National Association of Realtors to access contract forms ~ $500 annually.

My heloc that I was planning on accessing 137k is on pause because our DTI would be too high now that I don’t have a job, technically. 

There are also solutions with wholesale lenders like Symmetry Bank to do a HELOC up to 90% CLTV to access more capital if you need to for renovations.

The 62k is enough me to get started and would cover a down payment and some light-medium rehab but now that I know there is addition equity possible I would like to have access to it.