Depends on the type of GC you're looking for.The guys picking up material early in the morning at HD/Lowes/Menards are unlikely to run a very tight ship or handle large scale jobs.

If you don't have a company yet then no worries just don't include those yet. 

I then use websites like Build.com or Wayfair to source the majority of the materials and have them shipped directly to the project site.

Any damage to the Premises (including, without limitation, concrete walkways and stairs) caused by Tenant's use of ice melt, salt or similar product shall be the sole responsibility of Tenant, and Tenant shall be responsible for the cost and expense any repairs required as a result thereof."

There is a lot of good information here on BP in the forums.The basic concept is that you can diversify your tax-sheltered retirement savings from stocks, funds, CD's and other conventional financial products and include investment options such as real estate, notes. etc.  

Do not include any late fees in the total as CA courts view those as liquidated damages and may reject a notice that states a higher than owed amount due.

That does not include debt service, but does include taxes, insurance, advertising, lost rent to to vacancy or non-payment, legal expenses, accounting expenses, capital expenses (roofs, furnaces, etc), and property management.   

It sounds like the Listing Agent would prefer to work with another licensed realtor (there are several reasons for this, including his/her own personal liability). 

Please include me as well.

I say go for it but make sure your contract clearly states what is to be done to the property and should also include a timeline.