$1.$You are considering an investment in an apartment building in Montclair, NJ$.$ The building has a total of $10$ apartments; $6$ one$-$bedroom units and $4$ two$-$bedroom units. One$-$bedroom apartments for $$2500/$month$,$ two$-$bedroom units for $$3750/$month$.$ What is the annual potential gross income for this property?

$2.$If the typical vacancy rate for this type of property in this area is $8\%$ what is the effective gross income for this property?

$3.$If operating expenses are $45\%$ of total operating income and there are no other sources of income other than rent, what is NOI?

$4.$What is the estimated value of the apartment building based on a $6\%$ capitalization rate?