Check that the property is setup correctly in the MLS - make sure it's not listed under vacant land or something weird. 

There are plenty of ways to run background checks. 

The goal was to have the trailer paid off and given your advice, we could add another double wide on the property or buy the property next to the one we would buy and not only are you living in your paid off trailer, you’re getting a check every month to go towards building the dream house in the back yard! 

CPA/client relationship is definitely is something that needs careful consideration because want to find something that is the best fit for you in terms of risk tolerance level as well as budget.I just helped BP actually build out a CPA finder page so if you are still looking, check out that page to see service providers that have experience in working with RE investors https://www.biggerpockets.com/business/finder/tax-and-financ...

But even if you only wanted to pay your mortgage off faster and not invest, it works as long as you are disciplined, don't increase your expenses w/o at least a corresponding increase in income and basically use the HELOC as your checking account.

Joel has some valid points but, if you start talking about foreclosure rescue, you might want to check with the laws of your state regarding licensure requirements as a foreclosure consultant.

I do run credit & background checks that they pay for, but that is separate from just the application.

Start checking Zillow, Redfin, etc., for both rentals and sales prices. 

a lot... a ton.... off the charts.... not even close...Check real comps in area

A contractor can help yes when it comes to looking at it and telling you how much or what you be looking at if you want to upgrade or fix something visible but you need the inspector to check out the roof AC and plumbing thoroughly despite what it looks like in person I’ve seen mini jacked up ceilings.