I am overwhelmed by the number of different formulas that are out there for rental property investing and I don't want to overpack for lack of better words my investing formula arsenal so I would like to know what ones are the best to use and whyThe ones I currently use include: COC, NOI (and NIAF), Cap rate, ROR, ROI, and IRR=But I also have heard of NPV, I am also not including any "rule formulas" aka 1% and 50% as those are simply guidelines to follow and not complicated formulasLet me know if I am missing any or don't even need to use some of the ones I am usingThank you,Peyton LaBarbera

It is a balance sheet of all of your assets and liabilities including both personal and business. 

Some will be passed on to the tenant.You can include non-recurring expenses such as capital expenses, repairs, etc. 

Sister's rent amount, term (date of refinance), mortgage payment responsibility, insurance responsibility, utilities responsibility, tenant selection responsibility (since this will be a multifamily property), property management responsibilities including repairs, maintenance...2.

It usually ends bad for all involved including the GP.

And will have ..a GREAT FORUM…that has the typical…” Deals Available” section.PLAN ABut… the deals REQUIRE … a) the seller post the deal and …b) Include ….

The owner signed a 2  year lease in july 2023 for 2300$. 4 months later they put it back on the market for 2600$ and then lowered it to the present ask of 2150$.

If you do not have a set of specs and scope of work  with a contract than how do you know what is included and what the contractor may later claim is a change order or extra? 

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23DSCR lenders generally let you vest either individually or as an LLC.

He presented me with the opportunity to possibly lend money to a home builder as they develop a community.