It has approximately $200,000 in equity and currently cash flows about $1500/mo ( we split this cash flow and equity 50/50 with my mother that is my business partner).We have 3 kids and the oldest is about to go to UTK for college.

Until you learn to estimate yourself, based on your local costs, any estimate will probably be off.

Here’s how I see this unfolding:Building the Foundation: Acquiring ~50 UnitsI’m starting with a goal to purchase approximately 50 units in my local market, with the help of equity partners.

Question is, if I have the means to put a high enough down payment on a house to be cash flow positive (assuming my expense estimates are accurate, etc.) is that something that I should do?  

Quote from @Hector Espinosa: Hi,I'm negotiating a seller financing deal which may be my first one and would like to ask for some advise about and what are advantages and disadvantages about seller financing deals.These are the seller financing terms:House Price: $330,000.00 USD​ (Sellers still owe ~$301,000 USD)Down Payment: 5% = $16,500 USD​Loan Amount: $313, 500​ (Monthly payments will be amortized as a 30 years loan​)Interest Rate: 4.531%Balloon Loan Term: 5 YearsMonthly Payment (P&I): $1,594.24​Closing Costs:  ~$3300 ​Zip Code: 74105Observations:       * HVAC requires an update but pending to inspection (replacing with a new one will cost ~$10,000 - $15,000 USD )     * Expected Rent Income: $2,000- $2,300 but this is has been really complicated to get a good estimate because is all over the place in the different sites I have checked

After all expenses accounted for, my Quickbooks is showing an estimated Tax bill of $93K.

This indicates a strong market for short-term rentals.Revenue: The average revenue per available rental in Red River Gorge can be estimated using tools like AirDNA.

What do you estimate is the difference between the market rent (or what other tenants pay) and what she pays?

We typically estimate standard costs for these items but get them done much cheaper with our own crew.

By "business account," I’m referring to setting up an LLC as well as a business bank account.My goal is to expand my real estate portfolio by acquiring approximately two properties per year.