I have a tenant that is willing to pay for significant upgrades that will greatly enhance my property value. 

This is not something I would ever recommend until you are on the ladder and have made some money and are comfortable if the decision does not go in your favor but I believe this is the next step in an investors career path to grow and enhance your portfolio.Are others venturing outside their comfort zone and if so what has been a success for you and why and when did you decide to venture away?

Bass really carries, so no bass enhancement devices either.Since your sub-floor is attached directly to the joists without the sound control between them the noise will carry a lot from above to below and from below to above.

@Brian Garlington enhanced search on DealMachine and google search their name and location with quotations, check for them on Facebook etc

https://www.trustedchoice.com/condo-insurance/cove...You'll also want to ask about special coverage enhancements for Condo Owners Policies such as Special Assessment Coverage.  

I am more than willing to do that through a private massage or phone call.

I am looking for resources for commercial real estate investors to enhance their use of Quickbooks.  

Here are some tips on enhancing your property to retail: You only have one chance to make a first impression, which is why one of the most important tips to selling your home fast is to have curb appeal.

Outside getting an attorney to "massage" the situation, this is my understanding:1) No.  

My worry is in August and later when the enhancement runs out.