Does anybody have any experience with square cash, venmo or any other electronic method of collecting rent from tenant who may not have a checking account? 

I'm one that likes the "Simple Stupid" method.

However, two Appeals Court decisions say you can allocate mortgage interest and property taxes differently, by treating actual rental occupancy days as rental days and all other days — including days of vacancy — as personal days.Before the TCJA, the Appeals Court method was often more beneficial because (1) it allocates more mortgage interest and property taxes to Schedule A (where you could usually fully write off these expenses as allowable itemized deductions under prior law) and (2) it allocates less mortgage interest and property taxes to Schedule E, which usually allowed you to currently deduct more of the other expenses allocable to rental usage (property insurance, utilities, etc.) on Schedule E when applying the rental income limitation.But after the TCJA changes, some vacation-home owners may benefit from using the IRS-approved method instead of the Appeals Court method.

I have actually thought the same thing re: selling this large property and buying smaller ones but it seems it is very cost-prohibitive to buy properties right now, especially due to the COVID- induced, mad-dash for single family homes.Here are some facts about me and some goals:1 - recently retired from mil/ government service and now setting my sights on real-estate investing, with an emphasis on the BRRR method.  

Planning out next steps.In all, this was probably less than 8 hours of my week, and it didn’t feel like that.Stop scrolling social media and build something that matters.You have the time, just need to reorient.Drop a comment with any additional "time creation" methods you use at work!

Is there an economical method to get rid of this? 

I have no experience with construction or renovations but want to use the brrrr method. 

I know that testing certain methods and waiting on the results to give validity can take patience and maybe thats what i'm lacking.I've posted an ad on craigslist, My fiancé/business partner and I have posted bandit signs, and it may sound silly but i've even posted on my Facebook page asking people to share my post of me trying to market for motivated sellers and let them know that we will buy their homes.

I'm considering notes from various exchanges, but have no method/strategy defined around how to actually determine the good from the bad. 

You are on the correct train of thought, pulling equity and refinancing is the preferred method to increase cash flow.