I believe it is all cut and dry websites for $10/month.If you'd like your visitors to search for listings, you'll need to integrate an IDX I use iHomefinder or IDXBroker.

Would that trigger capital gains tax? 

Plug in the numbers and either pull the trigger or don't. 

Will the market dry up in a month or two or three when they decide to move out?

Don't get bogged down with analysis and never pull the trigger. 

$7500/month negative cashflow will bleed you dry!

If your basement is not finished and you just want a clean, dry basement then having an interior system put in is perfectly fine.

Also the intake or the pump could be too low and sucking in debris from the bottom or the well might not be capable of enough flow and is running the pump dry.

I would not say that you will ALWAYS get a value increase with the change.Second, the type of renovations you want will require you to pull an ALT-1 Permit: Permit's in NYCHowever, Jillian can confirm that.It is possible that a full tax re-assessment of your building will trigger paying higher taxes, which will blunt your calculated cash flow.If you were not changing the Certificate of Occupancy, I would not have mentioned a tax re-assessment.Those are a few things to think about and make sure you don't wind up spending a lot of money to make a change in the CofO only to wind up having the same Property Value AND having your potential income source blunted by increased property tax.

Just came back from a SFH I did repairs on in a nice area  .I hired out the  dry wall work good buddy .I fixed doors,deck ,bathroom issues that saved me 200 or more .The drywall work might be free he owes me a favor no biggie  either way .