While it’s true that most agents gauge a potential client’s seriousness by the existence or absence of a pre-approval letter, I think you can ease concerns by being honest with agents and voicing a preference to receive a lender recommendation from a trusted partner - which is what your agent should be from beginning to close.

My 1st offer already pissed him off, so I’m not concerned about that.

But as was already pointed out, many don't want a referral fee but are more concerned with recommending a good company to their clients. 

Looking back, I'm not sure how I kept up.A few years ago I got into mobile home parks and ran hard with that.

I also BELIEVE their biggest concern is tax liability shifting.

I'm considering mobile homes since there are quite a few parks around this area.

Back wooden fence belongs to my back neighbor which I am not concerned about now

Faith in their ability to create an air tight title policy has him geniunely concerned and so we move on. 

Personally the most effective bet is too call other local PM companies yourself because only you can truly express your concerns and maybe get better pricing.It should only take 15 mins per call.

One of the policies we saw had the breed exclusion that said something like... the breed exclusion applies if the dog breed is declared a dangerous breed in that city, state, etc or any surrounding municipality.Literally the city next to the one in question has a dog breed ban that they don't really enforce but as far as I'm concerned would open the door to a dog bite liability claim being denied.