When we underwrite our F&F's, the guidelines are in place to make sure you have a healthy profit margin so if we see anything glaring that should be re-considered we can walk through that in order to make sure everything make sense before proceeding. 

If the buyers know what they're doing in regards to renovation, maybe they could happen to walk into Greg Pace's office?

You might consider giving a notice to the entire building that you will be doing a walk-through on a certain date to check the condition of the property - you have a right to maintain your property and access all units if they are home or not with proper notice.Also, make sure that your notices have a person named as UNKNOWN OCCUPANTS listed.

While I believe anyone can joing CU's (unless they choose to stay private) they could have special considerations, like government employees/servive members where collections are a walk in the park so to speak.

For context, I have a W2 job which isn't related to a real estate trade.If I'm traveling to my out of state rental properties to walk the properties (including potential properties I may consider buying), meet with agent or property manager, etc, am I able to deduct the flight, hotel, rental car and 50% of reasonable meal costs (not a $500 dinner) or food costs (e.g.

I did walk away basically breaking even (probably out a few grand, but not losing my shirt) and with a much better respect and eye for a "great deal." 

I would consider a HELOC if you walked into that much equity.

I am literally sitting on the beach right now and I have guys doing three renovations, two rental returns, and walking two properties.

You are not obligated to make upgrades -- especially if they saw the property and walked it before they signed the lease and or if they sent you back the property inspection sheet from when they first moved in and did not request anything be repaired or upgraded.

I typically walk the properties for them, facetime and help analyze the deals prior to them coming up to view themselves.