Do I send a certified letter giving them notice to claim or otherwise will dispose?

One by REGULAR MAIL and one CERTIFIED MAIL.

@Kyle Chadwick  look at your option agreement there is probably a clause that says yoiu need to inform him in writing of your intention to exercise your option for the option amount send it regualr and certified mail.if he is as honorable as you state he will congratulate you.. if he gives you a hard time then it was a loan to own scenario.. as long as you have perfromed as agreed.. you deserve the up side

By their  nature that shows asset disposal under the 10 year mark generally from acquisition. 

I know with flood insurance they give it a % of likelihood that the natural disaster will occur.

None of the changes are electrical in nature but some are plumbing but I don't think a plumber should be required since its just small leaking faucet type stuff.3) has anyone ever counter back like that and did it scare the buyers off?  

I was right on it in Palo Alto)So for natural disasters its safer than most.. but for violent weather that kills many IE Tornados Hurricanes lighting  Zero chance.. other than the afore mentioned Columbus day storm of 1962 which brought 100 plus mile an hour winds to metro PDX and NW Oregon. it was a once in 500 years storms.

My friend complained that while they rented from her she made no repairs, would not answer any phone calls, they had NO address to send her certified mail and would only respond via text when it was time for the rent.I am still pretty new to BP - does anyone have an attorney here in Dallas/Ft.Worth that they would recommend? 

Due to the nature of the development, I need a fairly large tract of land - roughly 500 acres for the facilities themselves and another 500-1000 acres for sound buffer.

Numbers wise they are getting in for less w/ smaller notes & naturally the cash flow numbers will be better.Bottom line:  Your ability to cash flow while house hacking is location dependent.