OF COURSE the Contractor is going to say you need to tear it all out and rebuild the wall(s)  because that's the absolute easiest solution and adds additional work for him.

Looking at this as a strategic addition to my portfolio.

So you have some great resources right off the bat, my additional Referrals would be too many :)

That would be a helpful addition to your plan as you would further reduce your cost of living.Also don’t forget from that $600 you are planning on getting in cash flow you have taxes, insurance, maintenance, capex, and vacancy to consider.With two homes, you may want to keep that extra $20k as an emergency fund rather than spending it on a third property and then be left with no emergency funds.

Despite no additional renovations being necessary, our efficient strategy and swift turnaround led to a same-day sale at $225,000.

Regarding insurance adding additional umbrella insurance is great idea. 

In addition, there's a church, Bethel Church, and they have a ministry school, Bethel School of Supernatural MInistry, which is expanding to have 3000 students.

There are also 'mezz' lenders (typically for larger transactions) who will cover up to 90% CLTV and require you to bring the remaining equity to the deal, and additionally there is Gap Funding in the form of unsecured personal debt.The latter can potentially be the most expensive option, but allows for true 100% financing as there are no restrictions for how to use these funds, as they are unsecured, and generally obtained through personal credit, income etc (since there is no collateral for obtaining these funds).

Seller will be taking a 30k+ loss with this route.325k with 50K down to seller, 3 years of payments $1600/month, and a balloon payment of 215k at the end of 3 years.Benefits to me: (1) 10k less downpayment, (2) with the conventional route, the loan would be at 228k after 3 years of payments, so I will gain additional equity with the 2nd option since I will owe 215k (presumably I will have to refinance at that time).Benefit to seller: she gets over asking price, 50K upfront and $300/month of cash flow.Does this offer and structure sound reasonable?

https://nationalmortgageprofessional.com/news/study-reveals-....Not sure BP will allow that link to post, if not just google " 10000 saved using a broker vs direct lender" and you can find the article.On the flip side, there are some banks and credit unions that could offer products that they do not allow to be brokered.