Therefore, I try to find a more user friendly web site that can distill the above into something that is readable.  

You could look up Neighbor.com and do small storage on site for others as a new niche as well.

It's crucial to evaluate how the deal performs with the new mortgage:Updated Financials After Refinancing: Market Value: $459,000 Mortgage Amount (80% LTV): $367,200 Equity: $91,800 Interest Rate: 5% (30-Year Amortization) Assuming after 12months the rate will drop to 5%Monthly Expenses: Mortgage Payment (5% Interest): $1,971 (Now you are paying interest and principals) Property Tax: $260 (assuming has been increased with a 4% from last year) Utilities: $361 Insurance: $104 (+4% Adjustment) Vacancy: $166 (now after 12 months we can assume we have some vacancy at 5% factor on annual rent) Repairs & Maintenance: $166 (now after 12 months we can assume we have repairs at 5% factor on annual rent) Total Monthly Expenses: $3,028Rent Income after 12 months assuming annual rent increase at 5% : $3,323Cash Flow: $295$ per month 😊Long-Term Gains: $5,418 Principal Paydown year 2 (this will increase each as you pay off your mortgage $36,720 Property Appreciation (assuming 8% per year) $3,540 Cash Flow (this will increase as rents rise)Total Annual Return on Investment: $45,678 with just $ $22,789 remaining in the deal.

We are listed on about 6 sites and besides the typical Airbnb and VRBO, we've had success with Travelstayion as well. 

.), 1 stored in a cloud environment (and secured) and 1 off site.

I got a quote for 8K sft retail from a construction company for around $120/sft, this includes site prep, utilities, metal building erection, exterior finishes, interior insulation etc (basically build the shell from scratch).

The comps that do exist seem to be performing at a high-levelMarket Overvaluation?

Proceeds could be reinvested in better-performing assets across multiple doors.Our goal is to build appreciation over cash flow, acquiring 1-4 doors/year to allow my wife to retire by 50.

There are training sessions you can sign up for on the site, these are live with no recording of the sessions. 

@Guenevere F. you're going to need 20-25% down to get a mortgage.If you target $100k, that won't leave you any funds for closing cost, maintenance or emergency reserves.You could try targeting around $80k, but the $16k-$20k down payment would still not leave you with enough.If you buy under $80k, you're probably buying such a low-end property that it is unlikely to meet your performance expectations.