Tha, I just looked at the ATF site and it states:
If the licensee receives a "denied" response at any time before the transfer of the firearm, he or she may not transfer the firearm. [18 U.S.C.922(d)]
I suggest you do some reading before you give out firearms in violation of the law and try to assist in the recovery from who knows. I would sure hate to be responsible for violating the rules that are pretty common sense.
I do sometimes talk in general terms but don't cut somebody with clear intentions of violating the law.
Also not everyone can open up shop in their home. Local laws or regs may prohibit it. For example our neighbor wanted to open a office supply business. After all the public process he can have the business but shall not have any parcel or commercial delivery, it must be done off site. He shall not have more than three extra cars on site. No visible signs of business allowed. Along with a few more stipulations.