If that's the case and you aren't viewing more properties in person than you are making spreadsheets on, you are destined for analysis paralysis.Spreadsheets can only tell you estimations based on numbers given to you online or by a real estate agent whose job is to sell the property.

The difference is night and day between using someone you find online or in a search vs a personal referral. 

In September, I found a property I was interested in acquiring online.

Offered $20k over asking within a week of it coming online.

I would identify a market based on your current capacity and begin to network online and here on BP to form a solid trustworthy team to help you get going. 

You can also buy a Landlord Forms package from Biggerpockets, me, or find one online and hope it's sufficient and legal.You don't need an app to manage your property.

@Tiffany Da Silva, I use quickbooks online for bookkeeping and I use a "Profit First" approach to managing cash.

Quote from @Jimmy Wellman: I've looked online for some information about the average % of the final home price vs. the price you purchase the home for and found that the home should be purchased for 70% of your home's final sale price. 

I’d have a better picture by sitting down with someone at a bank, but I did a calculation online and the new loan on cashing out $130k would still be covered by the current rental payment.

I checked online regarding Elmsure.