I would give Prime Tracers a shot, they are pay as you go and you also get 100 free credits on sign up to try them out. 

You might want to check with local credit unions or community banks, as they’re often more flexible with second mortgages. 

Leave credit cards at home in the freezer in a bag filled with water that has frozen over....lolAmazes me how many people fall for these types of programs.When I buy NNN properties either my buyers wanting to own direct and I find the property or whether they are accredited LP investor on my syndication deals they learn with me while they INVEST CAPITAL to own fully themselves or a piece of the deal. 

It won't be perfect of course, but it will be a step up from the laissez faire system (or lack thereof) that we've been using in the past. 

Generally, the properties that benefit the most from a cost segregation study are properties that are remodeled, expanded, purchased or constructed after 1987, the year in which the Investment Tax Credit was enacted.

and how well my credit score will be?

A good indicator of this would be analyzing the HUD Fair Market Rents year over year.

Your best bet for that size will be local banks and credit unions, good luck.

We have credit scores over 730 and have been "soft approved" for around $750k. 

The seller doesn’t need to know that the underwriters may give you more of a hassle than other buyers.Or do you have lines of credit or a private lender so you can make a “cash” offer then try to get the financing through before close or at worst just do a cash out refi after close?