A noon check-in is probably not going to happen.  You can always ask when you book but there is never a guarantee. Check-outs are between 11 and noon and then the maids start cleaning rooms.  You will have better luck after 2pm, even better after 3.

Paying cash is not a problem but the hotel is still going to ask for a credit card to hold the reservation and also to hold on file against incidental charges.  Don't give them a debit card for this purpose. If you do they will withdraw a set amount and it will be out of your account for up to a week.  Only use a credit card.

The front desk doesn't care if you arrive with the lady or without.  The reservation is in your name.  

"Disreputable activities"? Dude, you are renting a hotel room. Unless you announce in the lobby to "send the prostitute right on up to my room when she gets here"  you've got nothing to worry about...assuming that you either know the lady or have screened her well.

Relax, have fun!

be best to meet on a Monday when the hotel may not have been full over Sunday night.  Saturday would be another option for a business hotel.

I register with a cc and then on my way out say that I would prefer to pay cash; hand over the $, then get the reciept. I'm talking mid-range hotel (Hilton Garden Inn, Marriott Springhill Suites, etc.)

You won't have problems. There are items that you should pay attention to when you check in, like lobby layout and elevators so that you can give the lady tips for her arrival. Chose providers that have top rated reviews or who come through a top rated agency. Stay away escorts from escort mall sites unless you can find up to date reviews for them. I have often been asked at hotels whether I want to pay cash or leave the charges on the card, I chose the latter because I am unattached single and have no concerns about an SO seeing the charges. I stay at higher end hotels.

my highly unpaid assistants have given you some good advice.  There is little I can add.  On subject of arriving with the provider, that happened to me once.  I had offered to pick up a touring provider at the airport and take her to the hotel, and have our play time after we got there.  I helped her with her luggage to the front desk and she made a joke about me being a friend with benefits....  The desk clerk got a kick out of that......Hotels want the rooms filled, as long as no undue attention is drawn towards their guests, most are not going to be watching you to see if you are on the up and up.  They simply do not employ the personnel to watch for 'disreputable activities', not cost effective.

As far as early check in, you can always ask when you make the reservation, citing some business reason or some such thing, but it may well cost you some extra cash to do it.  But it never hurts to ask.  The cash thing, we all understand the reason, but again, any decent place is going to want a CC to make the reservation.  If you're worried about a paper trail, get a CC using your work address, or a PO box if you can.  I don't have an SO, so I do not have that problem

Swim

I love nooners, too, and they are very easy to book. Just call up the hotel and ask if they have any "day rate" rooms available. Most of the nice mid-range hotels will have them (Marriott, Hyatt, etc) if they are not totally booked up that day. And, these days, they rarely are.

Check in time varies by hotel, but they usually allow you to check in as early as 9 am or 10 am and check out as late as 5 pm or 6 pm.  I do this all the time.  I check in at 11, the lady arrives at 12, we play until 1 or 2, then I am out by 3.  And you don't have to pay the full rate for an overnight stay.  Day rate rooms will generally run you about 50% to 60% of the cost of an overnight room.  In my town, that's usually $70 to $80.

I actually prefer this to visiting a lady's incall. Yes, it's a little more expensive, but I feel more comfortable knowing that I am not walking into a potentially bad situation, since I have control over the environment. Also, I like to take a nap after the lady leaves!  

Another option if you are not traveling away from home and don't need the room to sleep in that night....

Book the room and register the day before... Ask for late checkout... The next morning you have the room available with no worries.  The only thing you need to be sure of is "the time the late checkout is extended to".

In addition...
I dated a gal for several years who lived a couple states away. We connected by meeting half way inbetween -- a 1-1/2 drive for each of us. Two days in a row can be tremendously sensual. We met at noonish or early afternoon on day one, went home, and then on day two met again for breakfast in bed. Day One always seemed to be Fast & Furious day, since it may have been a month since we last connected, while Day Two was so damn romantic.

~Nooner~

LE goes around to hotels and educates staff on how to spot human trafficking.  They list "those who pay with cash" as those to watch out for.  Sorry but they do.  I've also read the Hotel Indigo in San Francisco is a pilot hotel with streaming video of the location.  

In some cases, I've read accounts that LE prints out the escort ads with face pics and distribute them to the front desk clerks to try and stop ladies when they attempt to check in.  

I've had hotel clerks get downright snotty with me when I wanted to pay cash and told me they would have to have a $200 refundable deposit AND a credit card on file in order for me to pay cash for the room.  

The times they are a changing.

I enjoy hosting outcalls myself. I find it much more relaxing. I've used the late check-out once. I'm more of an afternoon kind of guy. I'm traveling, so I need the room overnight. (nice info on day rates though, brenn). I have trouble with early check-in.

I'm thinking it's all the people doing nooners that's holding up my early check-in.

Ladies experienced with outcall are very good at blending in and going unnoticed by hotel staff. Most of the time, the front desk clerk doesn't even see me at all because I walk in like I am already a guest there and they aren't even paying attention. The front desk clerk during the day has no idea who checked in the day before under someone else's shift so they can't tell a guest from a visitor just by sight.

I always dress discreetly and change when I freshen up after I've gotten to the room.

So, if you check in by yourself, it shouldn't matter that much if you are at a high class or mid-range hotel. They aren't going to even know you are meeting anyone later. And there is no way for them to know when the girl walks in the hotel what room she is going to if they did see her.

Just avoid places that have valet only. That's when the girl arriving will be above the radar. I once went to a resort that had valet only and the valet guy who parked my car tried to book with me a few days later because he recognized me when he saw my ad. How eerie is that? I started blurring my pictures on Eros and Backpage after that. Thankfully, most places have self-parking.