The solar system adds no value to my property for rental purposes, and I may even be ripping up the roof & replacing it in the new year.Beyond sending a nasty letter through my attorney via certified mail, demanding the company come pick up their equipment, am I required to take any further action or fulfill any obligations regarding these contracts?

It's very simple, here is the header for one sheet:# Of RentalsAddressDate BoughtYear Roof was put onCost of PropertyValue of Property 2017Value of Property 2021TaxInsuranceMortgageMaint/HOAAC FiltersRent Per MonthThen I have another sheet to keep track of any expenses for the year:# Of RentalsAddressCityJanFebMarAprMayEverything is very organized on these two sheets for the CPA every January.

Doing few roof for single family homes in Houston.

We have had these type of leaks lots of times.

You can get some estimates from contractors for what they charge for big ticket items like to renovate a bathroom, renovate a kitchen, replace the furnace, replace the roof, etc.All wholesale deals should have free and clear title and you should be able to see the sales agreement before submitting the earnest money deposit.

Check your roof.  

It's a roof over your head, to use for a certain time, for a certain reason.

Our biggest climate risks in central Texas are typically wind and hail, so anything of concern regarding the roof could get an applicant declined including trees too close to the roof surface, roof over 10 years old, etc.

Ours is built with stucco siding, concrete tile roof, tempered windows, self-closing soffit and crawl space vents (they melt when exposed to heat). 

These include accidents (I recently had 2 units destroyed by fire), natural disasters (I have had two units each hit by 2 hurricanes), property management turn over (they sell or stop being as good, I have experienced both), or turn over of team (I am turning over at handyman and I suspect plumber), or just wear n tear of property (slab leak in poor location, sewer pipes rotted out (one unit this month), roof, foundation issue, etc.).