Some of the main variables in my projection models include: expenses (broken down into various categories like personal expenses, capex, debt service, vacancy, etc.), income, cashflow, debt, DTI, equity, property appreciation, rent appreciation, mortgage paydown & amortization, rate of net worth growth, cost of living increases, hours worked per week, cash on hand, etc, etc. 

Because Baselane was created by real estate investors for real estate investors, the categories align perfectly with your Schedule E you'll need to file when you do your taxes.

They are worth their weight in gold when the rubber hits the road.

In the middle of those two extremes might be a small business with 3 years left on their lease, but they've made improvements to the property that aren't cheap to remove, such as perhaps a dental office (dentists might be pissed that I put them in the mid-risk category, but all the dentists going out of business in 2020-2021 taught us that American consumers apparently regard dental care as an optional and "luxury" spending item). 

I'd throw the successful flip for a first time investor, which probably happened a lot in the past few years, in the "just because something worked does not mean that it was a good idea" category.

Also agree with @James Wise that it will get rid of the dead weight (we started doing that at our boutique brokerage anyway this year).

Also, a good CPA to help you set up your books with allowable expense categories and to answer specific questions.

@Kevin SalameaKind of a boring answer that I give all the time, but you can loosely sort Pennsylvania markets into the following categories:      - Philly/Pittsburgh       - Allentown/Lehigh Valley Area     - Harrisburg, Scranton/Wilkes-Barre, Lancaster, York/Hanover, and Reading     - Everything elseNot surprisingly, they match the metropolitan statistical areas in Pennsylvania (link). 

Here are a few potential types:* House hackers trying to figure out how to do accounting (I fall into this category, as I live in one unit of a 2-unit property)* Real estate agents who need accounting software, or transaction management software, or marketing software (I also fall into this category)* Landlords who self-manage and want something to help them with marketing, tenant management, accepting rents, etc., and also need bookkeeping/accounting software.

Generally there are three categories of multifamily investment properties – which will greatly determine your loan options.These three categories are based on the number of units at the property.2-4 Units: While these are “multifamily” properties in the sense that there are “multiple units” – you will generally have very similar options for financing to traditional residential loans on single family rentals – think the traditional 30-year fixed rate conventional option or DSCR Loans – and the coveted 20% down payment option too.