There is always a deal somewhere and if you have professionals helping you (mortgage broker, realtor, cpa, etc) lean on their knowledge.

We relisted the property and secured a buyer willing to put $2500 down and pay $25,500 over the course of 5 years at 7.2% interest.

should I pay a professional to do the work or do I attempt DIY?

I meant an experience with a financial professional. 

Of course, some aspects of feasibility depend on how much is owed on the house, the mortgage payment, and amounts of life insurance benefit(s).Does that clarify?

Accountants are in such demand, that the best are not even accepting clients half the time.The other problem I see often with accountants on here is that they specialize in larger investors, and have really high prices when you as a smaller investor do not need all the bells and whistles.Another thing I see is folks thinking they need to have a tax professional in their state.

I have met with sea wall contractors, done a full home inspection and met with another structural engineer and seawall professional that did an inspection and performed soil density tests around the property.

But you do have to cast a wide net and of course we are working in a Niche with little competition the sub 100k fix and flip deals..

Of course not.

I recommend a thorough risk management survey, preferably by a third-party professional that is trained to spot problems.