@Darwin CrawfordWhen I taught Real Estate Investing from 2005 to 2015 in my own CHARITABLE Education program, I based it on a book called What Every Real Estate Investor Needs to Know About Cashflow by Frank Gallinelli.It will be an extremely difficult read for those not used to the Time Value of Money which will lead into more sophisticated Financial concepts like Discounted Cashflows, etc.The other issue is that putting together these calculations should be in a Spreadsheet.

Obviously, any buyer should do extreme diligence when purchasing anything from anybody, but I feel that the "burn and churn" approach adopted by this group is not really something anyone would wish to enjoy. 

They sell it at Home Depot, and it's seems extremely durable so far.  

Inventory levels are extremely low. 

They are extremely helpful through this journey.

The difference between 1900 and 2000 is extremely large (almost too large to even us as a comp).

Mobile home parks in the close proximity of the Beach are extremely high and those too have years of being neglected.

I fear fi this went to court the judge would end up saying the place was not fit for habitation and in extreme cases can make you give back every penny of rent she paid so far.after she leaves, you need to seriously evaluate the property and what you/your dad are doing in real estate. you said this place was vacant for 3 years?

If the mtg is more than a sale would net, it’s a short sale, extremely hard to wholesale especially for a beginner.

There are extremely generous people here and giving is part of the mantra of many.