It certainly sounds as if the report is in father's favor. However at trial that can be torn down if the author never interviewed father. I strongly suggest that you seek an attorney in the area where the matter is pending. A consultation with a reputable attorney will provide some guidance on the weight the local court may put on an investigation especially in light of the "fact" father was not interviewed. These matters can get ugly fast. Do not delay in getting counsel. You should act promptly to obtain legal representation.
Attorney Helfrich is correct. You should at least consult with an attorney in the area of the hearing. The Courts generally rely upon the GAL's report, however, the other attorney can cross-examine the GAL and show that the GAL did not do a complete study. Regardless of whether the GAL's report is discredited or not, the ultimate decision is up to the Magistrate or Judge - and I have seen cases decided that went contrary to the recommendations of the GAL. I doubt that it would be a matter of "strings" being pulled. It is more a function of the evidence being presented in an effective manner.
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The GAL's report will have an impact on the Judge's decision but it is not controlling. Other issues can be brought out to show evidence of good character traits of father as well as lack of investigation by the GAL on the father's side, to show the report is somewhat incomplete. Having some independent and reliable person (In SC, I sometime retain a retired DSS case worker that did home studies) to go to dad's home and make report etc. and come to court to show why this is a good environment. Not sure all the aspects of the laws in the state your in, but GAL's report does not make you DOA, but needs to be explored and the holes in the report revealed (if they exist).
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