When I started it took a lot of effort to enter enough data to be able to generate meaningful financial reports.

I was wondering what other softwares are out there (like maybe ListSource) that wholesalers use for lead generation?

Investing: Given the relatively low interest rate of 3.75% on your current home, and considering the income it generates exceeds the mortgage and expenses, it might be more beneficial to keep leveraging that property as is rather than rushing to pay it off.

@Evan Polaski yes the cash that I’ve allocated is going into low volatility liquid securities that also generate some yield.  

Has anyone found lenders (preferably credit unions or small local banks) that do HELOCs on investment properties, or are okay with a tax return that shows income generated occasionally on a 2nd home?

I have excellent role-models in my own family of first-generation immigrants who have invested in RE decades ago and now enjoy total financial freedom before retirement.

I was thinking of offering Zelle, Venmo, cashier's checks as options- I want to try the inevitable situation of having a personal check bounce.5. what platform would be recommended for a lease generator?

Owners are supposed to certify to the Board if no sales were generated in any particular month, as well as provide a copy of any Colorado sales tax return or alternatively, a report from AirBnB or VRBO regarding the sales for that month.I find this invasive, crappy, and a whole lot more that shouldn't be said in polite company. 

Factor in the potential for renting out parts of the property to generate immediate income.

6 properties over 6 years is impressive.If you continue on this approach, you may be able to do better than 1 property per year if you make more money with your employer and are generating cash-flow from your renttal properties.Why switch strategies if you have something working for you?