NOI is NOI . . . the only difference is your cap rate at refinancing might be higher since apartment caps are generally stronger.

Its very difficult to predict the future.

I have seen cash flow projections that do not include any cap expense estimates with various rationale. 

Are you saving for Cap Ex items down the road?

So if an offer of $30k would get me my desired cashflow of $250 after all expenses (including saving for cap ex property management and maintenance) then I would start with an offer somewhere below that 30k mark and if the seller comes in higher you move on. 

We purchased a recently flipped cottage in June 2017 for the intended use of renting it out as a vacation home as well as personal use. Well, someone whose family owned the cottage during their childhood has made us a...

Unless you bought at a low cap rate and it won’t pay off for too long to wait.

I buy in C+ areas and I shoot for a 8% cap minimum with value add potential.

Make sure your cash flow is net cap of 10%.

So far I finding it difficult to get the numbers to work here as the property taxes are very high as compared to the rents.Please PM me if you like to chat more and exchange notes.Best of luck.