Any suggestions on a affordable hotel room near the Miami Airport? Crew rate?

While I don't know crew rates, there's a few Marriott properties around. One thing I found that may be helpful is calling the local FBO and see what they have available for crew rates. They can also recommend a decent place depending on what you're looking for (with hopefully a crew rate).

In season it's a biatch. Got the Best Western Plus recently for $120. Breakfast, golf course view and they worked with me on ck-in/out. Hilton Blue Lagoon for $105 every now & then. There's a flea bag just re-branded Motel 6 off the Palmetto advertising $65?

Miami Airways on 36th st. seen better days, good restaurant and bar.