I want to be able to complete this process as efficiently as possible, so I would love some expert opinions on the best system to follow for this.P.S.

We’ve obviously learned from experience but having three little kids I need to learn how to have some systems in place to make my life easier and to be better organized in the office.

I've had the best results from referring to teams as they tend to have stronger systems and measures for accountability among their agents. 

in 2 weeks, reversing the method of applying for PPP loans/grants for partnership.https://home.treasury.gov/system/files/136/Interim-Final-Rule-Additional-Eligibility-Criteria-and-Requirements-for-Certain-Pledges-of-Loans.pdf"...However, if you are a partner in a partnership, you may not submit a separate PPP loan application for yourself as a self-employed individual.

This, of course, does not factor in economic recessions, fluctuations within the market, or a drastic change in crime rate, school systems, job growth/decay, or migration.

I'm looking for systems and education on estimating repair costs so that I can put together accurate budgets, timelines, costs, etc. 

The crime, education system, corruption, taxes, budget, etc are all big deterrents.

If you have the time to setup systems and processes to automate most of the management, as it can easily be done, then you don't really need a management company in the long term.  

You get so high in the system it's mainly political and can become your whole life.

We do not invest in the city of Newark area because of the difficulties with the rental permits, but also because of the new requirements of fire suppression systems in all renos or new construction which can be very expensive.