(I’ve met a few who’ve resisted it in the past) Any recommendations would be great.

I think just being flexible gives you a huge leg up and the large companies that are very resistant to any "standard contract" modifications. 

I explained that this was a normal part of the screening process but he was resistant.

Then, if they resist, haggles, he can pull back and say, I'm not buying at this point.5.

When I get resistance I always phrase their question in reserve. 

Of course the cops are going to take the path of least resistance and say "it's a civil matter".

If this is in a low income neighborhood than don't do this but in the suburbs most neighbors will choose the path of least resistance and just not let their dog poop on your property anymore.

I don’t understand why they resisted online pay!

Yes work with them since it will be the path of least resistance, but sure as hell point out to them that they were dishonest with you and that they should have either moved to a place willing to do their dates or planned for alternative housing once the lease they signed was up.  

The professional installers are good judges of the differences... they look for ease of installation, how well the edges fit together, how well the edges hold up, quality of product, final look, and number of "call backs" they get from the customer.Some products are 100% water proof, some are water resistant.