A policywith a higher premium may be a better deal if it does not have a wind deductible.There are many endorsements that are available on the homeowners policy.

I doubt any insurance will insure the bldg. or endorse idea.

This is in NO WAY an endorsement.

The short duration should indicate whether or not I would endorse one. 

My agent told me that there's an endorsement in the policy covering the LLC that also covers the owners, I.e. me.

If you're his friend have him endorse it over to you and you take care of it.

Have the seller write you a check, and then endorse it back to the seller "As $5,000 down payment on the property and consideration for this Agreement, buyer will paint the front porch by July 4th."

Get them 125% Title Insurance with appropriate Endorsements to further secure their loan.

I endorse them very much. 

The checks will be made out to you and the lender and the lender will have to endorse them to get your money.