Players that play or will participate in the NCAA can not play with players that are considered professional (getting paid to play or have been paid to play). The PDL/NPSL teams must fill out Professional to Amateur form from FIFA that may be filled out 2 times in a players career (I think it's only twice, it may be only once). Only then can a player with a professional pass be eligible to play for an amateur team (they aren't considered professional any longer after that form).
The PDL has restrictions on who can play, so having an entire team of non-ncaa eligible players will be difficult. Only 8 players may be above age 23, and only 5 of the 26 man roster may be non-green carded players (Canucks don't count as foreigners in PDL)
You can pay players to work for your company, not play for your team. If they are doing office work for example they may be compensated for that work, but you are walking a fine line and better make sure that things are taken care of properly. The teams won't be the one who gets in trouble if they are paying under the table (well with the tax man they will), the player will lose their Collegiate eligibilty however and could also face sanctions from FIFA as well. The team will also probably face problems from their federation for paying amateur players to pay.
HOpe that made sense, I saw the post and wanted to jump in.