You could put in a range of numbers for purchase price and closing costs, renovation expenses, and expected returns and you could very quickly get a range of projected return on investments (although an excel spreadsheet could easily do this as well), but I'm sure as technology develops we will see even more sophistication in AI's ability to assist in deal analyzing.

Does anyone know, or have a good idea, about the difference in returns on entitling & developing the land for each scenario, with final objective to sell to a builder to build and sell the structures him/herself.  

Now your net is down to 15k (10% return) and mine is at 35k (14% return). 

The bottom line is that past performance is no indication of future returns.

Asking to anyone who has experience, knowledge or connections in these southern texas markets, how has this or does it affect your real estate strategy and returns? 

It's crucial to evaluate how the deal performs with the new mortgage:Updated Financials After Refinancing: Market Value: $250,000 Mortgage Amount (80% LTV): $200,000 Equity: $50,000 Interest Rate: 5% (30-Year Amortization) Assuming after 12months the rate will drop from 6% to 5%Monthly Expenses: Mortgage Payment: $1,074 Property Tax: $260 (4% Adjustment from last year) Utilities: $309 (+3% Adjustment) Insurance: $104 (+4% Adjustment) Vacancy: $105 Repairs & Maintenance: $105 (now after 12 months we can assume we have repairs at 5% factor on annual rent) Total Monthly Expenses: $1,957Rent Income after 12 months assuming annual rent increase at 5% : $2,100Cash Flow: $143 per month 😊Year 2 Return on investment $2,951 Principal Paydown year 2 $20,000 Property Appreciation (assuming 8% per year) $1,720 Yearly Cash Flow (this will increase as rents rise) $50,000 Initial Equity Total Gain $74,671 with just $ $22,789 remaining in the deal. 

Selling the property within your Solo 401(k) and returning the proceeds to the account simplifies compliance and ensures tax-deferred growth (or tax-free in a Roth Solo 401(k.)).

Key Deal Points:Loan Amount: $88,000Lien Position: 1st position Purchase Price: $120,000Appraised Value: $250,000Interest Rate/Return: 11% annual returnTerm: 5-year balloon (meaning the entire principal and interest must be paid at the end of the term)LTV ratio: 35.2%---Licensed Lending company for contractsRMLO package completed on buyersServicing company for payment

I hit 100% cash on cash return on all these B or C areas and they often outperform my better neighborhood properties. 

Most people are refinancing a BRRR because they are in short term debt (like 12 month hard money used for purchase +rehab financing) or own the property free and clear (they bought all cash) and would get a higher return on equity by leveraging the property and reinvesting the cash out proceeds of the loan to scale the portfolio.