I sent my letters after I had made an upgrade or repair on each unit.

If the repairs/upgrades are in the best interest of your investment and you've budgeted correctly, go ahead and take care of them.

Electrical panel upgrades?

They’ll handle customer activation and connection services, maintenance, repairs and upgrades, Internet security protection and monitoring.2.

People buy spec homes and upgrade them to nicer appliances, and the builders often can't return the other ones, but the overcharge for the upgraded ones so they don't care.

You can also call county and pay some postage and they will send you flood maps and flood zones for your hosue- by mail.Of Course--Florida or any one near ocean is lot differnet then in Georgia or Tennessee-- In low lying areas like Florida with high ground waters and no deep creeks or rivers - flood zones every where - Problem is USGS / Army Corps and USGS have not upgraded flood info in 50 years - and there is lot more developments in last 30-50 years - which increases runoffs and chances of flooding goes up every where.

I just upgraded to BP Pro in order to advertise for funding on some deals I just got under contract.

(by the way, Sac is a great place to start)- How much are you willing to put into repairs\upgrades?

Your question about value is very local, so I won't even try and address it.As for the GC trying to tell you what the value of this or that is...UNLESS the GC is a bonafide investor who can show you the HUD statement of the last flip he made with his name on the deed, when he starts talking about ARV you need to PLUG YOUR EARS AND SAY 'LALALALALALA' IN A LOUD VOICE.In my experience, unless a contractor is also an investor, they are terrible morons when it comes to determining resale value and the value of this upgrade vs. that upgrade.

You can control the value of the property much better through upgrades and and stabilized rents.